/* $OpenBSD: pgt.c,v 1.78 2015/05/21 09:36:20 mpi Exp $ */ /* * Copyright (c) 2006 Claudio Jeker * Copyright (c) 2006 Marcus Glocker * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * Copyright (c) 2004 Fujitsu Laboratories of America, Inc. * Copyright (c) 2004 Brian Fundakowski Feldman * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if NBPFILTER > 0 #include #endif #include #include #include #include #include #include #include #include #include #ifdef PGT_DEBUG #define DPRINTF(x) do { printf x; } while (0) #else #define DPRINTF(x) #endif #define SETOID(oid, var, size) { \ if (pgt_oid_set(sc, oid, var, size) != 0) \ break; \ } /* * This is a driver for the Intersil Prism family of 802.11g network cards, * based upon version 1.2 of the Linux driver and firmware found at * http://www.prism54.org/. */ #define SCAN_TIMEOUT 5 /* 5 seconds */ struct cfdriver pgt_cd = { NULL, "pgt", DV_IFNET }; void pgt_media_status(struct ifnet *ifp, struct ifmediareq *imr); int pgt_media_change(struct ifnet *ifp); void pgt_write_memory_barrier(struct pgt_softc *); uint32_t pgt_read_4(struct pgt_softc *, uint16_t); void pgt_write_4(struct pgt_softc *, uint16_t, uint32_t); void pgt_write_4_flush(struct pgt_softc *, uint16_t, uint32_t); void pgt_debug_events(struct pgt_softc *, const char *); uint32_t pgt_queue_frags_pending(struct pgt_softc *, enum pgt_queue); void pgt_reinit_rx_desc_frag(struct pgt_softc *, struct pgt_desc *); int pgt_load_tx_desc_frag(struct pgt_softc *, enum pgt_queue, struct pgt_desc *); void pgt_unload_tx_desc_frag(struct pgt_softc *, struct pgt_desc *); int pgt_load_firmware(struct pgt_softc *); void pgt_cleanup_queue(struct pgt_softc *, enum pgt_queue, struct pgt_frag *); int pgt_reset(struct pgt_softc *); void pgt_stop(struct pgt_softc *, unsigned int); void pgt_reboot(struct pgt_softc *); void pgt_init_intr(struct pgt_softc *); void pgt_update_intr(struct pgt_softc *, int); struct mbuf *pgt_ieee80211_encap(struct pgt_softc *, struct ether_header *, struct mbuf *, struct ieee80211_node **); void pgt_input_frames(struct pgt_softc *, struct mbuf *); void pgt_wakeup_intr(struct pgt_softc *); void pgt_sleep_intr(struct pgt_softc *); void pgt_empty_traps(struct pgt_softc_kthread *); void pgt_per_device_kthread(void *); void pgt_async_reset(struct pgt_softc *); void pgt_async_update(struct pgt_softc *); void pgt_txdone(struct pgt_softc *, enum pgt_queue); void pgt_rxdone(struct pgt_softc *, enum pgt_queue); void pgt_trap_received(struct pgt_softc *, uint32_t, void *, size_t); void pgt_mgmtrx_completion(struct pgt_softc *, struct pgt_mgmt_desc *); struct mbuf *pgt_datarx_completion(struct pgt_softc *, enum pgt_queue); int pgt_oid_get(struct pgt_softc *, enum pgt_oid, void *, size_t); int pgt_oid_retrieve(struct pgt_softc *, enum pgt_oid, void *, size_t); int pgt_oid_set(struct pgt_softc *, enum pgt_oid, const void *, size_t); void pgt_state_dump(struct pgt_softc *); int pgt_mgmt_request(struct pgt_softc *, struct pgt_mgmt_desc *); void pgt_desc_transmit(struct pgt_softc *, enum pgt_queue, struct pgt_desc *, uint16_t, int); void pgt_maybe_trigger(struct pgt_softc *, enum pgt_queue); struct ieee80211_node *pgt_ieee80211_node_alloc(struct ieee80211com *); void pgt_ieee80211_newassoc(struct ieee80211com *, struct ieee80211_node *, int); void pgt_ieee80211_node_free(struct ieee80211com *, struct ieee80211_node *); void pgt_ieee80211_node_copy(struct ieee80211com *, struct ieee80211_node *, const struct ieee80211_node *); int pgt_ieee80211_send_mgmt(struct ieee80211com *, struct ieee80211_node *, int, int, int); int pgt_net_attach(struct pgt_softc *); void pgt_start(struct ifnet *); int pgt_ioctl(struct ifnet *, u_long, caddr_t); void pgt_obj_bss2scanres(struct pgt_softc *, struct pgt_obj_bss *, struct wi_scan_res *, uint32_t); void node_mark_active_ap(void *, struct ieee80211_node *); void node_mark_active_adhoc(void *, struct ieee80211_node *); void pgt_watchdog(struct ifnet *); int pgt_init(struct ifnet *); void pgt_update_hw_from_sw(struct pgt_softc *, int, int); void pgt_hostap_handle_mlme(struct pgt_softc *, uint32_t, struct pgt_obj_mlme *); void pgt_update_sw_from_hw(struct pgt_softc *, struct pgt_async_trap *, struct mbuf *); int pgt_newstate(struct ieee80211com *, enum ieee80211_state, int); int pgt_drain_tx_queue(struct pgt_softc *, enum pgt_queue); int pgt_dma_alloc(struct pgt_softc *); int pgt_dma_alloc_queue(struct pgt_softc *sc, enum pgt_queue pq); void pgt_dma_free(struct pgt_softc *); void pgt_dma_free_queue(struct pgt_softc *sc, enum pgt_queue pq); void pgt_wakeup(struct pgt_softc *); void pgt_write_memory_barrier(struct pgt_softc *sc) { bus_space_barrier(sc->sc_iotag, sc->sc_iohandle, 0, 0, BUS_SPACE_BARRIER_WRITE); } u_int32_t pgt_read_4(struct pgt_softc *sc, uint16_t offset) { return (bus_space_read_4(sc->sc_iotag, sc->sc_iohandle, offset)); } void pgt_write_4(struct pgt_softc *sc, uint16_t offset, uint32_t value) { bus_space_write_4(sc->sc_iotag, sc->sc_iohandle, offset, value); } /* * Write out 4 bytes and cause a PCI flush by reading back in on a * harmless register. */ void pgt_write_4_flush(struct pgt_softc *sc, uint16_t offset, uint32_t value) { bus_space_write_4(sc->sc_iotag, sc->sc_iohandle, offset, value); (void)bus_space_read_4(sc->sc_iotag, sc->sc_iohandle, PGT_REG_INT_EN); } /* * Print the state of events in the queues from an interrupt or a trigger. */ void pgt_debug_events(struct pgt_softc *sc, const char *when) { #define COUNT(i) \ letoh32(sc->sc_cb->pcb_driver_curfrag[i]) - \ letoh32(sc->sc_cb->pcb_device_curfrag[i]) if (sc->sc_debug & SC_DEBUG_EVENTS) DPRINTF(("%s: ev%s: %u %u %u %u %u %u\n", sc->sc_dev.dv_xname, when, COUNT(0), COUNT(1), COUNT(2), COUNT(3), COUNT(4), COUNT(5))); #undef COUNT } uint32_t pgt_queue_frags_pending(struct pgt_softc *sc, enum pgt_queue pq) { return (letoh32(sc->sc_cb->pcb_driver_curfrag[pq]) - letoh32(sc->sc_cb->pcb_device_curfrag[pq])); } void pgt_reinit_rx_desc_frag(struct pgt_softc *sc, struct pgt_desc *pd) { pd->pd_fragp->pf_addr = htole32((uint32_t)pd->pd_dmaaddr); pd->pd_fragp->pf_size = htole16(PGT_FRAG_SIZE); pd->pd_fragp->pf_flags = 0; bus_dmamap_sync(sc->sc_dmat, pd->pd_dmam, 0, pd->pd_dmam->dm_mapsize, BUS_DMASYNC_POSTWRITE); } int pgt_load_tx_desc_frag(struct pgt_softc *sc, enum pgt_queue pq, struct pgt_desc *pd) { int error; error = bus_dmamap_load(sc->sc_dmat, pd->pd_dmam, pd->pd_mem, PGT_FRAG_SIZE, NULL, BUS_DMA_NOWAIT); if (error) { DPRINTF(("%s: unable to load %s tx DMA: %d\n", sc->sc_dev.dv_xname, pgt_queue_is_data(pq) ? "data" : "mgmt", error)); return (error); } pd->pd_dmaaddr = pd->pd_dmam->dm_segs[0].ds_addr; pd->pd_fragp->pf_addr = htole32((uint32_t)pd->pd_dmaaddr); pd->pd_fragp->pf_size = htole16(PGT_FRAG_SIZE); pd->pd_fragp->pf_flags = htole16(0); bus_dmamap_sync(sc->sc_dmat, pd->pd_dmam, 0, pd->pd_dmam->dm_mapsize, BUS_DMASYNC_POSTWRITE); return (0); } void pgt_unload_tx_desc_frag(struct pgt_softc *sc, struct pgt_desc *pd) { bus_dmamap_unload(sc->sc_dmat, pd->pd_dmam); pd->pd_dmaaddr = 0; } int pgt_load_firmware(struct pgt_softc *sc) { int error, reg, dirreg, fwoff, ucodeoff, fwlen; uint8_t *ucode; uint32_t *uc; size_t size; char *name; if (sc->sc_flags & SC_ISL3877) name = "pgt-isl3877"; else name = "pgt-isl3890"; /* includes isl3880 */ error = loadfirmware(name, &ucode, &size); if (error != 0) { DPRINTF(("%s: error %d, could not read firmware %s\n", sc->sc_dev.dv_xname, error, name)); return (EIO); } if (size & 3) { DPRINTF(("%s: bad firmware size %u\n", sc->sc_dev.dv_xname, size)); free(ucode, M_DEVBUF, 0); return (EINVAL); } pgt_reboot(sc); fwoff = 0; ucodeoff = 0; uc = (uint32_t *)ucode; reg = PGT_FIRMWARE_INTERNAL_OFFSET; while (fwoff < size) { pgt_write_4_flush(sc, PGT_REG_DIR_MEM_BASE, reg); if ((size - fwoff) >= PGT_DIRECT_MEMORY_SIZE) fwlen = PGT_DIRECT_MEMORY_SIZE; else fwlen = size - fwoff; dirreg = PGT_DIRECT_MEMORY_OFFSET; while (fwlen > 4) { pgt_write_4(sc, dirreg, uc[ucodeoff]); fwoff += 4; dirreg += 4; reg += 4; fwlen -= 4; ucodeoff++; } pgt_write_4_flush(sc, dirreg, uc[ucodeoff]); fwoff += 4; dirreg += 4; reg += 4; fwlen -= 4; ucodeoff++; } DPRINTF(("%s: %d bytes microcode loaded from %s\n", sc->sc_dev.dv_xname, fwoff, name)); reg = pgt_read_4(sc, PGT_REG_CTRL_STAT); reg &= ~(PGT_CTRL_STAT_RESET | PGT_CTRL_STAT_CLOCKRUN); reg |= PGT_CTRL_STAT_RAMBOOT; pgt_write_4_flush(sc, PGT_REG_CTRL_STAT, reg); pgt_write_memory_barrier(sc); DELAY(PGT_WRITEIO_DELAY); reg |= PGT_CTRL_STAT_RESET; pgt_write_4(sc, PGT_REG_CTRL_STAT, reg); pgt_write_memory_barrier(sc); DELAY(PGT_WRITEIO_DELAY); reg &= ~PGT_CTRL_STAT_RESET; pgt_write_4(sc, PGT_REG_CTRL_STAT, reg); pgt_write_memory_barrier(sc); DELAY(PGT_WRITEIO_DELAY); free(ucode, M_DEVBUF, 0); return (0); } void pgt_cleanup_queue(struct pgt_softc *sc, enum pgt_queue pq, struct pgt_frag *pqfrags) { struct pgt_desc *pd; unsigned int i; sc->sc_cb->pcb_device_curfrag[pq] = 0; i = 0; /* XXX why only freeq ??? */ TAILQ_FOREACH(pd, &sc->sc_freeq[pq], pd_link) { pd->pd_fragnum = i; pd->pd_fragp = &pqfrags[i]; if (pgt_queue_is_rx(pq)) pgt_reinit_rx_desc_frag(sc, pd); i++; } sc->sc_freeq_count[pq] = i; /* * The ring buffer describes how many free buffers are available from * the host (for receive queues) or how many are pending (for * transmit queues). */ if (pgt_queue_is_rx(pq)) sc->sc_cb->pcb_driver_curfrag[pq] = htole32(i); else sc->sc_cb->pcb_driver_curfrag[pq] = 0; } /* * Turn off interrupts, reset the device (possibly loading firmware), * and put everything in a known state. */ int pgt_reset(struct pgt_softc *sc) { int error; /* disable all interrupts */ pgt_write_4_flush(sc, PGT_REG_INT_EN, 0); DELAY(PGT_WRITEIO_DELAY); /* * Set up the management receive queue, assuming there are no * requests in progress. */ bus_dmamap_sync(sc->sc_dmat, sc->sc_cbdmam, 0, sc->sc_cbdmam->dm_mapsize, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_PREWRITE); pgt_cleanup_queue(sc, PGT_QUEUE_DATA_LOW_RX, &sc->sc_cb->pcb_data_low_rx[0]); pgt_cleanup_queue(sc, PGT_QUEUE_DATA_LOW_TX, &sc->sc_cb->pcb_data_low_tx[0]); pgt_cleanup_queue(sc, PGT_QUEUE_DATA_HIGH_RX, &sc->sc_cb->pcb_data_high_rx[0]); pgt_cleanup_queue(sc, PGT_QUEUE_DATA_HIGH_TX, &sc->sc_cb->pcb_data_high_tx[0]); pgt_cleanup_queue(sc, PGT_QUEUE_MGMT_RX, &sc->sc_cb->pcb_mgmt_rx[0]); pgt_cleanup_queue(sc, PGT_QUEUE_MGMT_TX, &sc->sc_cb->pcb_mgmt_tx[0]); bus_dmamap_sync(sc->sc_dmat, sc->sc_cbdmam, 0, sc->sc_cbdmam->dm_mapsize, BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_PREREAD); /* load firmware */ if (sc->sc_flags & SC_NEEDS_FIRMWARE) { error = pgt_load_firmware(sc); if (error) { printf("%s: firmware load failed\n", sc->sc_dev.dv_xname); return (error); } sc->sc_flags &= ~SC_NEEDS_FIRMWARE; DPRINTF(("%s: firmware loaded\n", sc->sc_dev.dv_xname)); } /* upload the control block's DMA address */ pgt_write_4_flush(sc, PGT_REG_CTRL_BLK_BASE, htole32((uint32_t)sc->sc_cbdmam->dm_segs[0].ds_addr)); DELAY(PGT_WRITEIO_DELAY); /* send a reset event */ pgt_write_4_flush(sc, PGT_REG_DEV_INT, PGT_DEV_INT_RESET); DELAY(PGT_WRITEIO_DELAY); /* await only the initialization interrupt */ pgt_write_4_flush(sc, PGT_REG_INT_EN, PGT_INT_STAT_INIT); DELAY(PGT_WRITEIO_DELAY); return (0); } /* * If we're trying to reset and the device has seemingly not been detached, * we'll spend a minute seeing if we can't do the reset. */ void pgt_stop(struct pgt_softc *sc, unsigned int flag) { struct ieee80211com *ic; unsigned int wokeup; int tryagain = 0; ic = &sc->sc_ic; ic->ic_if.if_flags &= ~IFF_RUNNING; sc->sc_flags |= SC_UNINITIALIZED; sc->sc_flags |= flag; pgt_drain_tx_queue(sc, PGT_QUEUE_DATA_LOW_TX); pgt_drain_tx_queue(sc, PGT_QUEUE_DATA_HIGH_TX); pgt_drain_tx_queue(sc, PGT_QUEUE_MGMT_TX); trying_again: /* disable all interrupts */ pgt_write_4_flush(sc, PGT_REG_INT_EN, 0); DELAY(PGT_WRITEIO_DELAY); /* reboot card */ pgt_reboot(sc); do { wokeup = 0; /* * We don't expect to be woken up, just to drop the lock * and time out. Only tx queues can have anything valid * on them outside of an interrupt. */ while (!TAILQ_EMPTY(&sc->sc_mgmtinprog)) { struct pgt_mgmt_desc *pmd; pmd = TAILQ_FIRST(&sc->sc_mgmtinprog); TAILQ_REMOVE(&sc->sc_mgmtinprog, pmd, pmd_link); pmd->pmd_error = ENETRESET; wakeup_one(pmd); if (sc->sc_debug & SC_DEBUG_MGMT) DPRINTF(("%s: queue: mgmt %p <- %#x " "(drained)\n", sc->sc_dev.dv_xname, pmd, pmd->pmd_oid)); wokeup++; } if (wokeup > 0) { if (flag == SC_NEEDS_RESET && sc->sc_flags & SC_DYING) { sc->sc_flags &= ~flag; return; } } } while (wokeup > 0); if (flag == SC_NEEDS_RESET) { int error; DPRINTF(("%s: resetting\n", sc->sc_dev.dv_xname)); sc->sc_flags &= ~SC_POWERSAVE; sc->sc_flags |= SC_NEEDS_FIRMWARE; error = pgt_reset(sc); if (error == 0) { tsleep(&sc->sc_flags, 0, "pgtres", hz); if (sc->sc_flags & SC_UNINITIALIZED) { printf("%s: not responding\n", sc->sc_dev.dv_xname); /* Thud. It was probably removed. */ if (tryagain) panic("pgt went for lunch"); /* XXX */ tryagain = 1; } else { /* await all interrupts */ pgt_write_4_flush(sc, PGT_REG_INT_EN, PGT_INT_STAT_SOURCES); DELAY(PGT_WRITEIO_DELAY); ic->ic_if.if_flags |= IFF_RUNNING; } } if (tryagain) goto trying_again; sc->sc_flags &= ~flag; if (ic->ic_if.if_flags & IFF_RUNNING) pgt_update_hw_from_sw(sc, ic->ic_state != IEEE80211_S_INIT, ic->ic_opmode != IEEE80211_M_MONITOR); } ic->ic_if.if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); } void pgt_attach(void *xsc) { struct pgt_softc *sc = xsc; int error; /* debug flags */ //sc->sc_debug |= SC_DEBUG_QUEUES; /* super verbose */ //sc->sc_debug |= SC_DEBUG_MGMT; sc->sc_debug |= SC_DEBUG_UNEXPECTED; //sc->sc_debug |= SC_DEBUG_TRIGGER; /* verbose */ //sc->sc_debug |= SC_DEBUG_EVENTS; /* super verbose */ //sc->sc_debug |= SC_DEBUG_POWER; sc->sc_debug |= SC_DEBUG_TRAP; sc->sc_debug |= SC_DEBUG_LINK; //sc->sc_debug |= SC_DEBUG_RXANNEX; //sc->sc_debug |= SC_DEBUG_RXFRAG; //sc->sc_debug |= SC_DEBUG_RXETHER; /* enable card if possible */ if (sc->sc_enable != NULL) (*sc->sc_enable)(sc); error = pgt_dma_alloc(sc); if (error) return; sc->sc_ic.ic_if.if_softc = sc; TAILQ_INIT(&sc->sc_mgmtinprog); TAILQ_INIT(&sc->sc_kthread.sck_traps); sc->sc_flags |= SC_NEEDS_FIRMWARE | SC_UNINITIALIZED; sc->sc_80211_ioc_auth = IEEE80211_AUTH_OPEN; error = pgt_reset(sc); if (error) return; tsleep(&sc->sc_flags, 0, "pgtres", hz); if (sc->sc_flags & SC_UNINITIALIZED) { printf("%s: not responding\n", sc->sc_dev.dv_xname); sc->sc_flags |= SC_NEEDS_FIRMWARE; return; } else { /* await all interrupts */ pgt_write_4_flush(sc, PGT_REG_INT_EN, PGT_INT_STAT_SOURCES); DELAY(PGT_WRITEIO_DELAY); } error = pgt_net_attach(sc); if (error) return; if (kthread_create(pgt_per_device_kthread, sc, NULL, sc->sc_dev.dv_xname) != 0) return; ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); } int pgt_detach(struct pgt_softc *sc) { if (sc->sc_flags & SC_NEEDS_FIRMWARE || sc->sc_flags & SC_UNINITIALIZED) /* device was not initialized correctly, so leave early */ goto out; /* stop card */ pgt_stop(sc, SC_DYING); pgt_reboot(sc); ieee80211_ifdetach(&sc->sc_ic.ic_if); if_detach(&sc->sc_ic.ic_if); out: /* disable card if possible */ if (sc->sc_disable != NULL) (*sc->sc_disable)(sc); pgt_dma_free(sc); return (0); } void pgt_reboot(struct pgt_softc *sc) { uint32_t reg; reg = pgt_read_4(sc, PGT_REG_CTRL_STAT); reg &= ~(PGT_CTRL_STAT_RESET | PGT_CTRL_STAT_RAMBOOT); pgt_write_4(sc, PGT_REG_CTRL_STAT, reg); pgt_write_memory_barrier(sc); DELAY(PGT_WRITEIO_DELAY); reg |= PGT_CTRL_STAT_RESET; pgt_write_4(sc, PGT_REG_CTRL_STAT, reg); pgt_write_memory_barrier(sc); DELAY(PGT_WRITEIO_DELAY); reg &= ~PGT_CTRL_STAT_RESET; pgt_write_4(sc, PGT_REG_CTRL_STAT, reg); pgt_write_memory_barrier(sc); DELAY(PGT_RESET_DELAY); } void pgt_init_intr(struct pgt_softc *sc) { if ((sc->sc_flags & SC_UNINITIALIZED) == 0) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: spurious initialization\n", sc->sc_dev.dv_xname)); } else { sc->sc_flags &= ~SC_UNINITIALIZED; wakeup(&sc->sc_flags); } } /* * If called with a NULL last_nextpkt, only the mgmt queue will be checked * for new packets. */ void pgt_update_intr(struct pgt_softc *sc, int hack) { /* priority order */ enum pgt_queue pqs[PGT_QUEUE_COUNT] = { PGT_QUEUE_MGMT_TX, PGT_QUEUE_MGMT_RX, PGT_QUEUE_DATA_HIGH_TX, PGT_QUEUE_DATA_HIGH_RX, PGT_QUEUE_DATA_LOW_TX, PGT_QUEUE_DATA_LOW_RX }; struct mbuf *m; uint32_t npend; unsigned int dirtycount; int i; bus_dmamap_sync(sc->sc_dmat, sc->sc_cbdmam, 0, sc->sc_cbdmam->dm_mapsize, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_PREWRITE); pgt_debug_events(sc, "intr"); /* * Check for completion of tx in their dirty queues. * Check completion of rx into their dirty queues. */ for (i = 0; i < PGT_QUEUE_COUNT; i++) { size_t qdirty, qfree; qdirty = sc->sc_dirtyq_count[pqs[i]]; qfree = sc->sc_freeq_count[pqs[i]]; /* * We want the wrap-around here. */ if (pgt_queue_is_rx(pqs[i])) { int data; data = pgt_queue_is_data(pqs[i]); #ifdef PGT_BUGGY_INTERRUPT_RECOVERY if (hack && data) continue; #endif npend = pgt_queue_frags_pending(sc, pqs[i]); /* * Receive queues clean up below, so qdirty must * always be 0. */ if (npend > qfree) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: rx queue [%u] " "overflowed by %u\n", sc->sc_dev.dv_xname, pqs[i], npend - qfree)); sc->sc_flags |= SC_INTR_RESET; break; } while (qfree-- > npend) pgt_rxdone(sc, pqs[i]); } else { npend = pgt_queue_frags_pending(sc, pqs[i]); if (npend > qdirty) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: tx queue [%u] " "underflowed by %u\n", sc->sc_dev.dv_xname, pqs[i], npend - qdirty)); sc->sc_flags |= SC_INTR_RESET; break; } /* * If the free queue was empty, or the data transmit * queue just became empty, wake up any waiters. */ if (qdirty > npend) { if (pgt_queue_is_data(pqs[i])) { sc->sc_ic.ic_if.if_timer = 0; sc->sc_ic.ic_if.if_flags &= ~IFF_OACTIVE; } while (qdirty-- > npend) pgt_txdone(sc, pqs[i]); } } } /* * This is the deferred completion for received management frames * and where we queue network frames for stack input. */ dirtycount = sc->sc_dirtyq_count[PGT_QUEUE_MGMT_RX]; while (!TAILQ_EMPTY(&sc->sc_dirtyq[PGT_QUEUE_MGMT_RX])) { struct pgt_mgmt_desc *pmd; pmd = TAILQ_FIRST(&sc->sc_mgmtinprog); /* * If there is no mgmt request in progress or the operation * returned is explicitly a trap, this pmd will essentially * be ignored. */ pgt_mgmtrx_completion(sc, pmd); } sc->sc_cb->pcb_driver_curfrag[PGT_QUEUE_MGMT_RX] = htole32(dirtycount + letoh32(sc->sc_cb->pcb_driver_curfrag[PGT_QUEUE_MGMT_RX])); dirtycount = sc->sc_dirtyq_count[PGT_QUEUE_DATA_HIGH_RX]; while (!TAILQ_EMPTY(&sc->sc_dirtyq[PGT_QUEUE_DATA_HIGH_RX])) { if ((m = pgt_datarx_completion(sc, PGT_QUEUE_DATA_HIGH_RX))) pgt_input_frames(sc, m); } sc->sc_cb->pcb_driver_curfrag[PGT_QUEUE_DATA_HIGH_RX] = htole32(dirtycount + letoh32(sc->sc_cb->pcb_driver_curfrag[PGT_QUEUE_DATA_HIGH_RX])); dirtycount = sc->sc_dirtyq_count[PGT_QUEUE_DATA_LOW_RX]; while (!TAILQ_EMPTY(&sc->sc_dirtyq[PGT_QUEUE_DATA_LOW_RX])) { if ((m = pgt_datarx_completion(sc, PGT_QUEUE_DATA_LOW_RX))) pgt_input_frames(sc, m); } sc->sc_cb->pcb_driver_curfrag[PGT_QUEUE_DATA_LOW_RX] = htole32(dirtycount + letoh32(sc->sc_cb->pcb_driver_curfrag[PGT_QUEUE_DATA_LOW_RX])); /* * Write out what we've finished with. */ bus_dmamap_sync(sc->sc_dmat, sc->sc_cbdmam, 0, sc->sc_cbdmam->dm_mapsize, BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_PREREAD); } struct mbuf * pgt_ieee80211_encap(struct pgt_softc *sc, struct ether_header *eh, struct mbuf *m, struct ieee80211_node **ni) { struct ieee80211com *ic; struct ieee80211_frame *frame; struct llc *snap; ic = &sc->sc_ic; if (ni != NULL && ic->ic_opmode == IEEE80211_M_MONITOR) { *ni = ieee80211_ref_node(ic->ic_bss); (*ni)->ni_inact = 0; return (m); } M_PREPEND(m, sizeof(*frame) + sizeof(*snap), M_DONTWAIT); if (m == NULL) return (m); if (m->m_len < sizeof(*frame) + sizeof(*snap)) { m = m_pullup(m, sizeof(*frame) + sizeof(*snap)); if (m == NULL) return (m); } frame = mtod(m, struct ieee80211_frame *); snap = (struct llc *)&frame[1]; if (ni != NULL) { if (ic->ic_opmode == IEEE80211_M_STA) { *ni = ieee80211_ref_node(ic->ic_bss); } #ifndef IEEE80211_STA_ONLY else { *ni = ieee80211_find_node(ic, eh->ether_shost); /* * Make up associations for ad-hoc mode. To support * ad-hoc WPA, we'll need to maintain a bounded * pool of ad-hoc stations. */ if (*ni == NULL && ic->ic_opmode != IEEE80211_M_HOSTAP) { *ni = ieee80211_dup_bss(ic, eh->ether_shost); if (*ni != NULL) { (*ni)->ni_associd = 1; ic->ic_newassoc(ic, *ni, 1); } } if (*ni == NULL) { m_freem(m); return (NULL); } } #endif (*ni)->ni_inact = 0; } snap->llc_dsap = snap->llc_ssap = LLC_SNAP_LSAP; snap->llc_control = LLC_UI; snap->llc_snap.org_code[0] = 0; snap->llc_snap.org_code[1] = 0; snap->llc_snap.org_code[2] = 0; snap->llc_snap.ether_type = eh->ether_type; frame->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; /* Doesn't look like much of the 802.11 header is available. */ *(uint16_t *)frame->i_dur = *(uint16_t *)frame->i_seq = 0; /* * Translate the addresses; WDS is not handled. */ switch (ic->ic_opmode) { case IEEE80211_M_STA: frame->i_fc[1] = IEEE80211_FC1_DIR_FROMDS; IEEE80211_ADDR_COPY(frame->i_addr1, eh->ether_dhost); IEEE80211_ADDR_COPY(frame->i_addr2, ic->ic_bss->ni_bssid); IEEE80211_ADDR_COPY(frame->i_addr3, eh->ether_shost); break; #ifndef IEEE80211_STA_ONLY case IEEE80211_M_IBSS: case IEEE80211_M_AHDEMO: frame->i_fc[1] = IEEE80211_FC1_DIR_NODS; IEEE80211_ADDR_COPY(frame->i_addr1, eh->ether_dhost); IEEE80211_ADDR_COPY(frame->i_addr2, eh->ether_shost); IEEE80211_ADDR_COPY(frame->i_addr3, ic->ic_bss->ni_bssid); break; case IEEE80211_M_HOSTAP: /* HostAP forwarding defaults to being done on firmware. */ frame->i_fc[1] = IEEE80211_FC1_DIR_TODS; IEEE80211_ADDR_COPY(frame->i_addr1, ic->ic_bss->ni_bssid); IEEE80211_ADDR_COPY(frame->i_addr2, eh->ether_shost); IEEE80211_ADDR_COPY(frame->i_addr3, eh->ether_dhost); break; #endif default: break; } return (m); } void pgt_input_frames(struct pgt_softc *sc, struct mbuf *m) { struct ether_header eh; struct ifnet *ifp; struct ieee80211_channel *chan; struct ieee80211_rxinfo rxi; struct ieee80211_node *ni; struct ieee80211com *ic; struct pgt_rx_annex *pra; struct pgt_rx_header *pha; struct mbuf *next; unsigned int n; uint32_t rstamp; uint8_t rssi; ic = &sc->sc_ic; ifp = &ic->ic_if; for (next = m; m != NULL; m = next) { next = m->m_nextpkt; m->m_nextpkt = NULL; if (ic->ic_opmode == IEEE80211_M_MONITOR) { if (m->m_len < sizeof(*pha)) { m = m_pullup(m, sizeof(*pha)); if (m == NULL) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: m_pullup " "failure\n", sc->sc_dev.dv_xname)); ifp->if_ierrors++; continue; } } pha = mtod(m, struct pgt_rx_header *); pra = NULL; goto input; } if (m->m_len < sizeof(*pra)) { m = m_pullup(m, sizeof(*pra)); if (m == NULL) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: m_pullup failure\n", sc->sc_dev.dv_xname)); ifp->if_ierrors++; continue; } } pra = mtod(m, struct pgt_rx_annex *); pha = &pra->pra_header; if (sc->sc_debug & SC_DEBUG_RXANNEX) DPRINTF(("%s: rx annex: ? %04x " "len %u clock %u flags %02x ? %02x rate %u ? %02x " "freq %u ? %04x rssi %u pad %02x%02x%02x\n", sc->sc_dev.dv_xname, letoh16(pha->pra_unknown0), letoh16(pha->pra_length), letoh32(pha->pra_clock), pha->pra_flags, pha->pra_unknown1, pha->pra_rate, pha->pra_unknown2, letoh32(pha->pra_frequency), pha->pra_unknown3, pha->pra_rssi, pha->pra_pad[0], pha->pra_pad[1], pha->pra_pad[2])); if (sc->sc_debug & SC_DEBUG_RXETHER) DPRINTF(("%s: rx ether: %s < %s 0x%04x\n", sc->sc_dev.dv_xname, ether_sprintf(pra->pra_ether_dhost), ether_sprintf(pra->pra_ether_shost), ntohs(pra->pra_ether_type))); memcpy(eh.ether_dhost, pra->pra_ether_dhost, ETHER_ADDR_LEN); memcpy(eh.ether_shost, pra->pra_ether_shost, ETHER_ADDR_LEN); eh.ether_type = pra->pra_ether_type; input: /* * This flag is set if e.g. packet could not be decrypted. */ if (pha->pra_flags & PRA_FLAG_BAD) { ifp->if_ierrors++; m_freem(m); continue; } /* * After getting what we want, chop off the annex, then * turn into something that looks like it really was * 802.11. */ rssi = pha->pra_rssi; rstamp = letoh32(pha->pra_clock); n = ieee80211_mhz2ieee(letoh32(pha->pra_frequency), 0); if (n <= IEEE80211_CHAN_MAX) chan = &ic->ic_channels[n]; else chan = ic->ic_bss->ni_chan; /* Send to 802.3 listeners. */ if (pra) { m_adj(m, sizeof(*pra)); } else m_adj(m, sizeof(*pha)); m = pgt_ieee80211_encap(sc, &eh, m, &ni); if (m != NULL) { #if NBPFILTER > 0 if (sc->sc_drvbpf != NULL) { struct mbuf mb; struct pgt_rx_radiotap_hdr *tap = &sc->sc_rxtap; tap->wr_flags = 0; tap->wr_chan_freq = htole16(chan->ic_freq); tap->wr_chan_flags = htole16(chan->ic_flags); tap->wr_rssi = rssi; tap->wr_max_rssi = ic->ic_max_rssi; mb.m_data = (caddr_t)tap; mb.m_len = sc->sc_rxtap_len; mb.m_next = m; mb.m_nextpkt = NULL; mb.m_type = 0; mb.m_flags = 0; bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_IN); } #endif rxi.rxi_flags = 0; ni->ni_rssi = rxi.rxi_rssi = rssi; ni->ni_rstamp = rxi.rxi_tstamp = rstamp; ieee80211_input(ifp, m, ni, &rxi); /* * The frame may have caused the node to be marked for * reclamation (e.g. in response to a DEAUTH message) * so use free_node here instead of unref_node. */ if (ni == ic->ic_bss) ieee80211_unref_node(&ni); else ieee80211_release_node(&sc->sc_ic, ni); } else { ifp->if_ierrors++; } } } void pgt_wakeup_intr(struct pgt_softc *sc) { int shouldupdate; int i; shouldupdate = 0; /* Check for any queues being empty before updating. */ bus_dmamap_sync(sc->sc_dmat, sc->sc_cbdmam, 0, sc->sc_cbdmam->dm_mapsize, BUS_DMASYNC_POSTREAD); for (i = 0; !shouldupdate && i < PGT_QUEUE_COUNT; i++) { if (pgt_queue_is_tx(i)) shouldupdate = pgt_queue_frags_pending(sc, i); else shouldupdate = pgt_queue_frags_pending(sc, i) < sc->sc_freeq_count[i]; } if (!TAILQ_EMPTY(&sc->sc_mgmtinprog)) shouldupdate = 1; if (sc->sc_debug & SC_DEBUG_POWER) DPRINTF(("%s: wakeup interrupt (update = %d)\n", sc->sc_dev.dv_xname, shouldupdate)); sc->sc_flags &= ~SC_POWERSAVE; if (shouldupdate) { pgt_write_4_flush(sc, PGT_REG_DEV_INT, PGT_DEV_INT_UPDATE); DELAY(PGT_WRITEIO_DELAY); } } void pgt_sleep_intr(struct pgt_softc *sc) { int allowed; int i; allowed = 1; /* Check for any queues not being empty before allowing. */ bus_dmamap_sync(sc->sc_dmat, sc->sc_cbdmam, 0, sc->sc_cbdmam->dm_mapsize, BUS_DMASYNC_POSTREAD); for (i = 0; allowed && i < PGT_QUEUE_COUNT; i++) { if (pgt_queue_is_tx(i)) allowed = pgt_queue_frags_pending(sc, i) == 0; else allowed = pgt_queue_frags_pending(sc, i) >= sc->sc_freeq_count[i]; } if (!TAILQ_EMPTY(&sc->sc_mgmtinprog)) allowed = 0; if (sc->sc_debug & SC_DEBUG_POWER) DPRINTF(("%s: sleep interrupt (allowed = %d)\n", sc->sc_dev.dv_xname, allowed)); if (allowed && sc->sc_ic.ic_flags & IEEE80211_F_PMGTON) { sc->sc_flags |= SC_POWERSAVE; pgt_write_4_flush(sc, PGT_REG_DEV_INT, PGT_DEV_INT_SLEEP); DELAY(PGT_WRITEIO_DELAY); } } void pgt_empty_traps(struct pgt_softc_kthread *sck) { struct pgt_async_trap *pa; struct mbuf *m; while (!TAILQ_EMPTY(&sck->sck_traps)) { pa = TAILQ_FIRST(&sck->sck_traps); TAILQ_REMOVE(&sck->sck_traps, pa, pa_link); m = pa->pa_mbuf; m_freem(m); } } void pgt_per_device_kthread(void *argp) { struct pgt_softc *sc; struct pgt_softc_kthread *sck; struct pgt_async_trap *pa; struct mbuf *m; int s; sc = argp; sck = &sc->sc_kthread; while (!sck->sck_exit) { if (!sck->sck_update && !sck->sck_reset && TAILQ_EMPTY(&sck->sck_traps)) tsleep(&sc->sc_kthread, 0, "pgtkth", 0); if (sck->sck_reset) { DPRINTF(("%s: [thread] async reset\n", sc->sc_dev.dv_xname)); sck->sck_reset = 0; sck->sck_update = 0; pgt_empty_traps(sck); s = splnet(); pgt_stop(sc, SC_NEEDS_RESET); splx(s); } else if (!TAILQ_EMPTY(&sck->sck_traps)) { DPRINTF(("%s: [thread] got a trap\n", sc->sc_dev.dv_xname)); pa = TAILQ_FIRST(&sck->sck_traps); TAILQ_REMOVE(&sck->sck_traps, pa, pa_link); m = pa->pa_mbuf; m_adj(m, sizeof(*pa)); pgt_update_sw_from_hw(sc, pa, m); m_freem(m); } else if (sck->sck_update) { sck->sck_update = 0; pgt_update_sw_from_hw(sc, NULL, NULL); } } pgt_empty_traps(sck); kthread_exit(0); } void pgt_async_reset(struct pgt_softc *sc) { if (sc->sc_flags & (SC_DYING | SC_NEEDS_RESET)) return; sc->sc_kthread.sck_reset = 1; wakeup(&sc->sc_kthread); } void pgt_async_update(struct pgt_softc *sc) { if (sc->sc_flags & SC_DYING) return; sc->sc_kthread.sck_update = 1; wakeup(&sc->sc_kthread); } int pgt_intr(void *arg) { struct pgt_softc *sc; struct ifnet *ifp; u_int32_t reg; sc = arg; ifp = &sc->sc_ic.ic_if; /* * Here the Linux driver ands in the value of the INT_EN register, * and masks off everything but the documented interrupt bits. Why? * * Unknown bit 0x4000 is set upon initialization, 0x8000000 some * other times. */ if (sc->sc_ic.ic_flags & IEEE80211_F_PMGTON && sc->sc_flags & SC_POWERSAVE) { /* * Don't try handling the interrupt in sleep mode. */ reg = pgt_read_4(sc, PGT_REG_CTRL_STAT); if (reg & PGT_CTRL_STAT_SLEEPMODE) return (0); } reg = pgt_read_4(sc, PGT_REG_INT_STAT); if (reg == 0) return (0); /* This interrupt is not from us */ pgt_write_4_flush(sc, PGT_REG_INT_ACK, reg); if (reg & PGT_INT_STAT_INIT) pgt_init_intr(sc); if (reg & PGT_INT_STAT_UPDATE) { pgt_update_intr(sc, 0); /* * If we got an update, it's not really asleep. */ sc->sc_flags &= ~SC_POWERSAVE; /* * Pretend I have any idea what the documentation * would say, and just give it a shot sending an * "update" after acknowledging the interrupt * bits and writing out the new control block. */ pgt_write_4_flush(sc, PGT_REG_DEV_INT, PGT_DEV_INT_UPDATE); DELAY(PGT_WRITEIO_DELAY); } if (reg & PGT_INT_STAT_SLEEP && !(reg & PGT_INT_STAT_WAKEUP)) pgt_sleep_intr(sc); if (reg & PGT_INT_STAT_WAKEUP) pgt_wakeup_intr(sc); if (sc->sc_flags & SC_INTR_RESET) { sc->sc_flags &= ~SC_INTR_RESET; pgt_async_reset(sc); } if (reg & ~PGT_INT_STAT_SOURCES && sc->sc_debug & SC_DEBUG_UNEXPECTED) { DPRINTF(("%s: unknown interrupt bits %#x (stat %#x)\n", sc->sc_dev.dv_xname, reg & ~PGT_INT_STAT_SOURCES, pgt_read_4(sc, PGT_REG_CTRL_STAT))); } if (!IFQ_IS_EMPTY(&ifp->if_snd)) pgt_start(ifp); return (1); } void pgt_txdone(struct pgt_softc *sc, enum pgt_queue pq) { struct pgt_desc *pd; pd = TAILQ_FIRST(&sc->sc_dirtyq[pq]); TAILQ_REMOVE(&sc->sc_dirtyq[pq], pd, pd_link); sc->sc_dirtyq_count[pq]--; TAILQ_INSERT_TAIL(&sc->sc_freeq[pq], pd, pd_link); sc->sc_freeq_count[pq]++; bus_dmamap_sync(sc->sc_dmat, pd->pd_dmam, 0, pd->pd_dmam->dm_mapsize, BUS_DMASYNC_POSTREAD); /* Management frames want completion information. */ if (sc->sc_debug & SC_DEBUG_QUEUES) { DPRINTF(("%s: queue: tx %u <- [%u]\n", sc->sc_dev.dv_xname, pd->pd_fragnum, pq)); if (sc->sc_debug & SC_DEBUG_MGMT && pgt_queue_is_mgmt(pq)) { struct pgt_mgmt_frame *pmf; pmf = (struct pgt_mgmt_frame *)pd->pd_mem; DPRINTF(("%s: queue: txmgmt %p <- " "(ver %u, op %u, flags %#x)\n", sc->sc_dev.dv_xname, pd, pmf->pmf_version, pmf->pmf_operation, pmf->pmf_flags)); } } pgt_unload_tx_desc_frag(sc, pd); } void pgt_rxdone(struct pgt_softc *sc, enum pgt_queue pq) { struct pgt_desc *pd; pd = TAILQ_FIRST(&sc->sc_freeq[pq]); TAILQ_REMOVE(&sc->sc_freeq[pq], pd, pd_link); sc->sc_freeq_count[pq]--; TAILQ_INSERT_TAIL(&sc->sc_dirtyq[pq], pd, pd_link); sc->sc_dirtyq_count[pq]++; bus_dmamap_sync(sc->sc_dmat, pd->pd_dmam, 0, pd->pd_dmam->dm_mapsize, BUS_DMASYNC_POSTREAD); if (sc->sc_debug & SC_DEBUG_QUEUES) DPRINTF(("%s: queue: rx %u <- [%u]\n", sc->sc_dev.dv_xname, pd->pd_fragnum, pq)); if (sc->sc_debug & SC_DEBUG_UNEXPECTED && pd->pd_fragp->pf_flags & ~htole16(PF_FLAG_MF)) DPRINTF(("%s: unknown flags on rx [%u]: %#x\n", sc->sc_dev.dv_xname, pq, letoh16(pd->pd_fragp->pf_flags))); } /* * Traps are generally used for the firmware to report changes in state * back to the host. Mostly this processes changes in link state, but * it needs to also be used to initiate WPA and other authentication * schemes in terms of client (station) or server (access point). */ void pgt_trap_received(struct pgt_softc *sc, uint32_t oid, void *trapdata, size_t size) { struct pgt_async_trap *pa; struct mbuf *m; char *p; size_t total; if (sc->sc_flags & SC_DYING) return; total = sizeof(oid) + size + sizeof(struct pgt_async_trap); if (total > MLEN) { MGETHDR(m, M_DONTWAIT, MT_DATA); if (m == NULL) return; MCLGET(m, M_DONTWAIT); if (!(m->m_flags & M_EXT)) { m_freem(m); m = NULL; } } else m = m_get(M_DONTWAIT, MT_DATA); if (m == NULL) return; else m->m_len = total; pa = mtod(m, struct pgt_async_trap *); p = mtod(m, char *) + sizeof(*pa); *(uint32_t *)p = oid; p += sizeof(uint32_t); memcpy(p, trapdata, size); pa->pa_mbuf = m; TAILQ_INSERT_TAIL(&sc->sc_kthread.sck_traps, pa, pa_link); wakeup(&sc->sc_kthread); } /* * Process a completed management response (all requests should be * responded to, quickly) or an event (trap). */ void pgt_mgmtrx_completion(struct pgt_softc *sc, struct pgt_mgmt_desc *pmd) { struct pgt_desc *pd; struct pgt_mgmt_frame *pmf; uint32_t oid, size; pd = TAILQ_FIRST(&sc->sc_dirtyq[PGT_QUEUE_MGMT_RX]); TAILQ_REMOVE(&sc->sc_dirtyq[PGT_QUEUE_MGMT_RX], pd, pd_link); sc->sc_dirtyq_count[PGT_QUEUE_MGMT_RX]--; TAILQ_INSERT_TAIL(&sc->sc_freeq[PGT_QUEUE_MGMT_RX], pd, pd_link); sc->sc_freeq_count[PGT_QUEUE_MGMT_RX]++; if (letoh16(pd->pd_fragp->pf_size) < sizeof(*pmf)) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: mgmt desc too small: %u\n", sc->sc_dev.dv_xname, letoh16(pd->pd_fragp->pf_size))); goto out_nopmd; } pmf = (struct pgt_mgmt_frame *)pd->pd_mem; if (pmf->pmf_version != PMF_VER) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: unknown mgmt version %u\n", sc->sc_dev.dv_xname, pmf->pmf_version)); goto out_nopmd; } if (pmf->pmf_device != PMF_DEV) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: unknown mgmt dev %u\n", sc->sc_dev.dv_xname, pmf->pmf_device)); goto out; } if (pmf->pmf_flags & ~PMF_FLAG_VALID) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: unknown mgmt flags %x\n", sc->sc_dev.dv_xname, pmf->pmf_flags & ~PMF_FLAG_VALID)); goto out; } if (pmf->pmf_flags & PMF_FLAG_LE) { oid = letoh32(pmf->pmf_oid); size = letoh32(pmf->pmf_size); } else { oid = betoh32(pmf->pmf_oid); size = betoh32(pmf->pmf_size); } if (pmf->pmf_operation == PMF_OP_TRAP) { pmd = NULL; /* ignored */ DPRINTF(("%s: mgmt trap received (op %u, oid %#x, len %u)\n", sc->sc_dev.dv_xname, pmf->pmf_operation, oid, size)); pgt_trap_received(sc, oid, (char *)pmf + sizeof(*pmf), min(size, PGT_FRAG_SIZE - sizeof(*pmf))); goto out_nopmd; } if (pmd == NULL) { if (sc->sc_debug & (SC_DEBUG_UNEXPECTED | SC_DEBUG_MGMT)) DPRINTF(("%s: spurious mgmt received " "(op %u, oid %#x, len %u)\n", sc->sc_dev.dv_xname, pmf->pmf_operation, oid, size)); goto out_nopmd; } switch (pmf->pmf_operation) { case PMF_OP_RESPONSE: pmd->pmd_error = 0; break; case PMF_OP_ERROR: pmd->pmd_error = EPERM; goto out; default: if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: unknown mgmt op %u\n", sc->sc_dev.dv_xname, pmf->pmf_operation)); pmd->pmd_error = EIO; goto out; } if (oid != pmd->pmd_oid) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: mgmt oid changed from %#x -> %#x\n", sc->sc_dev.dv_xname, pmd->pmd_oid, oid)); pmd->pmd_oid = oid; } if (pmd->pmd_recvbuf != NULL) { if (size > PGT_FRAG_SIZE) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: mgmt oid %#x has bad size %u\n", sc->sc_dev.dv_xname, oid, size)); pmd->pmd_error = EIO; goto out; } if (size > pmd->pmd_len) pmd->pmd_error = ENOMEM; else memcpy(pmd->pmd_recvbuf, (char *)pmf + sizeof(*pmf), size); pmd->pmd_len = size; } out: TAILQ_REMOVE(&sc->sc_mgmtinprog, pmd, pmd_link); wakeup_one(pmd); if (sc->sc_debug & SC_DEBUG_MGMT) DPRINTF(("%s: queue: mgmt %p <- (op %u, oid %#x, len %u)\n", sc->sc_dev.dv_xname, pmd, pmf->pmf_operation, pmd->pmd_oid, pmd->pmd_len)); out_nopmd: pgt_reinit_rx_desc_frag(sc, pd); } /* * Queue packets for reception and defragmentation. I don't know now * whether the rx queue being full enough to start, but not finish, * queueing a fragmented packet, can happen. */ struct mbuf * pgt_datarx_completion(struct pgt_softc *sc, enum pgt_queue pq) { struct ifnet *ifp; struct pgt_desc *pd; struct mbuf *top, **mp, *m; size_t datalen; uint16_t morefrags, dataoff; int tlen = 0; ifp = &sc->sc_ic.ic_if; m = NULL; top = NULL; mp = ⊤ while ((pd = TAILQ_FIRST(&sc->sc_dirtyq[pq])) != NULL) { TAILQ_REMOVE(&sc->sc_dirtyq[pq], pd, pd_link); sc->sc_dirtyq_count[pq]--; datalen = letoh16(pd->pd_fragp->pf_size); dataoff = letoh32(pd->pd_fragp->pf_addr) - pd->pd_dmaaddr; morefrags = pd->pd_fragp->pf_flags & htole16(PF_FLAG_MF); if (sc->sc_debug & SC_DEBUG_RXFRAG) DPRINTF(("%s: rx frag: len %u memoff %u flags %x\n", sc->sc_dev.dv_xname, datalen, dataoff, pd->pd_fragp->pf_flags)); /* Add the (two+?) bytes for the header. */ if (datalen + dataoff > PGT_FRAG_SIZE) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s data rx too big: %u\n", sc->sc_dev.dv_xname, datalen)); goto fail; } if (m == NULL) MGETHDR(m, M_DONTWAIT, MT_DATA); else m = m_get(M_DONTWAIT, MT_DATA); if (m == NULL) goto fail; if (datalen > MHLEN) { MCLGET(m, M_DONTWAIT); if (!(m->m_flags & M_EXT)) { m_free(m); goto fail; } } bcopy(pd->pd_mem + dataoff, mtod(m, char *), datalen); m->m_len = datalen; tlen += datalen; *mp = m; mp = &m->m_next; TAILQ_INSERT_TAIL(&sc->sc_freeq[pq], pd, pd_link); sc->sc_freeq_count[pq]++; pgt_reinit_rx_desc_frag(sc, pd); if (!morefrags) break; } if (top) { top->m_pkthdr.len = tlen; } return (top); fail: TAILQ_INSERT_TAIL(&sc->sc_freeq[pq], pd, pd_link); sc->sc_freeq_count[pq]++; pgt_reinit_rx_desc_frag(sc, pd); ifp->if_ierrors++; if (top) m_freem(top); return (NULL); } int pgt_oid_get(struct pgt_softc *sc, enum pgt_oid oid, void *arg, size_t arglen) { struct pgt_mgmt_desc pmd; int error; bzero(&pmd, sizeof(pmd)); pmd.pmd_recvbuf = arg; pmd.pmd_len = arglen; pmd.pmd_oid = oid; error = pgt_mgmt_request(sc, &pmd); if (error == 0) error = pmd.pmd_error; if (error != 0 && error != EPERM && sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: failure getting oid %#x: %d\n", sc->sc_dev.dv_xname, oid, error)); return (error); } int pgt_oid_retrieve(struct pgt_softc *sc, enum pgt_oid oid, void *arg, size_t arglen) { struct pgt_mgmt_desc pmd; int error; bzero(&pmd, sizeof(pmd)); pmd.pmd_sendbuf = arg; pmd.pmd_recvbuf = arg; pmd.pmd_len = arglen; pmd.pmd_oid = oid; error = pgt_mgmt_request(sc, &pmd); if (error == 0) error = pmd.pmd_error; if (error != 0 && error != EPERM && sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: failure retrieving oid %#x: %d\n", sc->sc_dev.dv_xname, oid, error)); return (error); } int pgt_oid_set(struct pgt_softc *sc, enum pgt_oid oid, const void *arg, size_t arglen) { struct pgt_mgmt_desc pmd; int error; bzero(&pmd, sizeof(pmd)); pmd.pmd_sendbuf = arg; pmd.pmd_len = arglen; pmd.pmd_oid = oid; error = pgt_mgmt_request(sc, &pmd); if (error == 0) error = pmd.pmd_error; if (error != 0 && error != EPERM && sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: failure setting oid %#x: %d\n", sc->sc_dev.dv_xname, oid, error)); return (error); } void pgt_state_dump(struct pgt_softc *sc) { printf("%s: state dump: control 0x%08x interrupt 0x%08x\n", sc->sc_dev.dv_xname, pgt_read_4(sc, PGT_REG_CTRL_STAT), pgt_read_4(sc, PGT_REG_INT_STAT)); printf("%s: state dump: driver curfrag[]\n", sc->sc_dev.dv_xname); printf("%s: 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", sc->sc_dev.dv_xname, letoh32(sc->sc_cb->pcb_driver_curfrag[0]), letoh32(sc->sc_cb->pcb_driver_curfrag[1]), letoh32(sc->sc_cb->pcb_driver_curfrag[2]), letoh32(sc->sc_cb->pcb_driver_curfrag[3]), letoh32(sc->sc_cb->pcb_driver_curfrag[4]), letoh32(sc->sc_cb->pcb_driver_curfrag[5])); printf("%s: state dump: device curfrag[]\n", sc->sc_dev.dv_xname); printf("%s: 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", sc->sc_dev.dv_xname, letoh32(sc->sc_cb->pcb_device_curfrag[0]), letoh32(sc->sc_cb->pcb_device_curfrag[1]), letoh32(sc->sc_cb->pcb_device_curfrag[2]), letoh32(sc->sc_cb->pcb_device_curfrag[3]), letoh32(sc->sc_cb->pcb_device_curfrag[4]), letoh32(sc->sc_cb->pcb_device_curfrag[5])); } int pgt_mgmt_request(struct pgt_softc *sc, struct pgt_mgmt_desc *pmd) { struct pgt_desc *pd; struct pgt_mgmt_frame *pmf; int error, i; if (sc->sc_flags & (SC_DYING | SC_NEEDS_RESET)) return (EIO); if (pmd->pmd_len > PGT_FRAG_SIZE - sizeof(*pmf)) return (ENOMEM); pd = TAILQ_FIRST(&sc->sc_freeq[PGT_QUEUE_MGMT_TX]); if (pd == NULL) return (ENOMEM); error = pgt_load_tx_desc_frag(sc, PGT_QUEUE_MGMT_TX, pd); if (error) return (error); pmf = (struct pgt_mgmt_frame *)pd->pd_mem; pmf->pmf_version = PMF_VER; /* "get" and "retrieve" operations look the same */ if (pmd->pmd_recvbuf != NULL) pmf->pmf_operation = PMF_OP_GET; else pmf->pmf_operation = PMF_OP_SET; pmf->pmf_oid = htobe32(pmd->pmd_oid); pmf->pmf_device = PMF_DEV; pmf->pmf_flags = 0; pmf->pmf_size = htobe32(pmd->pmd_len); /* "set" and "retrieve" operations both send data */ if (pmd->pmd_sendbuf != NULL) memcpy(pmf + 1, pmd->pmd_sendbuf, pmd->pmd_len); else bzero(pmf + 1, pmd->pmd_len); pmd->pmd_error = EINPROGRESS; TAILQ_INSERT_TAIL(&sc->sc_mgmtinprog, pmd, pmd_link); if (sc->sc_debug & SC_DEBUG_MGMT) DPRINTF(("%s: queue: mgmt %p -> (op %u, oid %#x, len %u)\n", sc->sc_dev.dv_xname, pmd, pmf->pmf_operation, pmd->pmd_oid, pmd->pmd_len)); pgt_desc_transmit(sc, PGT_QUEUE_MGMT_TX, pd, sizeof(*pmf) + pmd->pmd_len, 0); /* * Try for one second, triggering 10 times. * * Do our best to work around seemingly buggy CardBus controllers * on Soekris 4521 that fail to get interrupts with alarming * regularity: run as if an interrupt occurred and service every * queue except for mbuf reception. */ i = 0; do { if (tsleep(pmd, 0, "pgtmgm", hz / 10) != EWOULDBLOCK) break; if (pmd->pmd_error != EINPROGRESS) break; if (sc->sc_flags & (SC_DYING | SC_NEEDS_RESET)) { pmd->pmd_error = EIO; TAILQ_REMOVE(&sc->sc_mgmtinprog, pmd, pmd_link); break; } if (i != 9) pgt_maybe_trigger(sc, PGT_QUEUE_MGMT_RX); #ifdef PGT_BUGGY_INTERRUPT_RECOVERY pgt_update_intr(sc, 0); #endif } while (i++ < 10); if (pmd->pmd_error == EINPROGRESS) { printf("%s: timeout waiting for management " "packet response to %#x\n", sc->sc_dev.dv_xname, pmd->pmd_oid); TAILQ_REMOVE(&sc->sc_mgmtinprog, pmd, pmd_link); if (sc->sc_debug & SC_DEBUG_UNEXPECTED) pgt_state_dump(sc); pgt_async_reset(sc); error = ETIMEDOUT; } else error = 0; return (error); } void pgt_desc_transmit(struct pgt_softc *sc, enum pgt_queue pq, struct pgt_desc *pd, uint16_t len, int morecoming) { TAILQ_REMOVE(&sc->sc_freeq[pq], pd, pd_link); sc->sc_freeq_count[pq]--; TAILQ_INSERT_TAIL(&sc->sc_dirtyq[pq], pd, pd_link); sc->sc_dirtyq_count[pq]++; if (sc->sc_debug & SC_DEBUG_QUEUES) DPRINTF(("%s: queue: tx %u -> [%u]\n", sc->sc_dev.dv_xname, pd->pd_fragnum, pq)); bus_dmamap_sync(sc->sc_dmat, sc->sc_cbdmam, 0, sc->sc_cbdmam->dm_mapsize, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_PREWRITE); if (morecoming) pd->pd_fragp->pf_flags |= htole16(PF_FLAG_MF); pd->pd_fragp->pf_size = htole16(len); bus_dmamap_sync(sc->sc_dmat, pd->pd_dmam, 0, pd->pd_dmam->dm_mapsize, BUS_DMASYNC_POSTWRITE); sc->sc_cb->pcb_driver_curfrag[pq] = htole32(letoh32(sc->sc_cb->pcb_driver_curfrag[pq]) + 1); bus_dmamap_sync(sc->sc_dmat, sc->sc_cbdmam, 0, sc->sc_cbdmam->dm_mapsize, BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_PREREAD); if (!morecoming) pgt_maybe_trigger(sc, pq); } void pgt_maybe_trigger(struct pgt_softc *sc, enum pgt_queue pq) { unsigned int tries = 1000000 / PGT_WRITEIO_DELAY; /* one second */ uint32_t reg; if (sc->sc_debug & SC_DEBUG_TRIGGER) DPRINTF(("%s: triggered by queue [%u]\n", sc->sc_dev.dv_xname, pq)); pgt_debug_events(sc, "trig"); if (sc->sc_flags & SC_POWERSAVE) { /* Magic values ahoy? */ if (pgt_read_4(sc, PGT_REG_INT_STAT) == 0xabadface) { do { reg = pgt_read_4(sc, PGT_REG_CTRL_STAT); if (!(reg & PGT_CTRL_STAT_SLEEPMODE)) DELAY(PGT_WRITEIO_DELAY); } while (tries-- != 0); if (!(reg & PGT_CTRL_STAT_SLEEPMODE)) { if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: timeout triggering from " "sleep mode\n", sc->sc_dev.dv_xname)); pgt_async_reset(sc); return; } } pgt_write_4_flush(sc, PGT_REG_DEV_INT, PGT_DEV_INT_WAKEUP); DELAY(PGT_WRITEIO_DELAY); /* read the status back in */ (void)pgt_read_4(sc, PGT_REG_CTRL_STAT); DELAY(PGT_WRITEIO_DELAY); } else { pgt_write_4_flush(sc, PGT_REG_DEV_INT, PGT_DEV_INT_UPDATE); DELAY(PGT_WRITEIO_DELAY); } } struct ieee80211_node * pgt_ieee80211_node_alloc(struct ieee80211com *ic) { struct pgt_ieee80211_node *pin; pin = malloc(sizeof(*pin), M_DEVBUF, M_NOWAIT | M_ZERO); if (pin != NULL) { pin->pin_dot1x_auth = PIN_DOT1X_UNAUTHORIZED; } return (struct ieee80211_node *)pin; } void pgt_ieee80211_newassoc(struct ieee80211com *ic, struct ieee80211_node *ni, int reallynew) { ieee80211_ref_node(ni); } void pgt_ieee80211_node_free(struct ieee80211com *ic, struct ieee80211_node *ni) { struct pgt_ieee80211_node *pin; pin = (struct pgt_ieee80211_node *)ni; free(pin, M_DEVBUF, 0); } void pgt_ieee80211_node_copy(struct ieee80211com *ic, struct ieee80211_node *dst, const struct ieee80211_node *src) { const struct pgt_ieee80211_node *psrc; struct pgt_ieee80211_node *pdst; psrc = (const struct pgt_ieee80211_node *)src; pdst = (struct pgt_ieee80211_node *)dst; bcopy(psrc, pdst, sizeof(*psrc)); } int pgt_ieee80211_send_mgmt(struct ieee80211com *ic, struct ieee80211_node *ni, int type, int arg1, int arg2) { return (EOPNOTSUPP); } int pgt_net_attach(struct pgt_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &ic->ic_if; struct ieee80211_rateset *rs; uint8_t rates[IEEE80211_RATE_MAXSIZE]; struct pgt_obj_buffer psbuffer; struct pgt_obj_frequencies *freqs; uint32_t phymode, country; unsigned int chan, i, j, firstchan = -1; int error; psbuffer.pob_size = htole32(PGT_FRAG_SIZE * PGT_PSM_BUFFER_FRAME_COUNT); psbuffer.pob_addr = htole32(sc->sc_psmdmam->dm_segs[0].ds_addr); error = pgt_oid_set(sc, PGT_OID_PSM_BUFFER, &psbuffer, sizeof(country)); if (error) return (error); error = pgt_oid_get(sc, PGT_OID_PHY, &phymode, sizeof(phymode)); if (error) return (error); error = pgt_oid_get(sc, PGT_OID_MAC_ADDRESS, ic->ic_myaddr, sizeof(ic->ic_myaddr)); if (error) return (error); error = pgt_oid_get(sc, PGT_OID_COUNTRY, &country, sizeof(country)); if (error) return (error); ifp->if_softc = sc; ifp->if_ioctl = pgt_ioctl; ifp->if_start = pgt_start; ifp->if_watchdog = pgt_watchdog; ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST; strlcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); IFQ_SET_READY(&ifp->if_snd); /* * Set channels * * Prism hardware likes to report supported frequencies that are * not actually available for the country of origin. */ j = sizeof(*freqs) + (IEEE80211_CHAN_MAX + 1) * sizeof(uint16_t); freqs = malloc(j, M_DEVBUF, M_WAITOK); error = pgt_oid_get(sc, PGT_OID_SUPPORTED_FREQUENCIES, freqs, j); if (error) { free(freqs, M_DEVBUF, 0); return (error); } for (i = 0, j = letoh16(freqs->pof_count); i < j; i++) { chan = ieee80211_mhz2ieee(letoh16(freqs->pof_freqlist_mhz[i]), 0); if (chan > IEEE80211_CHAN_MAX) { printf("%s: reported bogus channel (%uMHz)\n", sc->sc_dev.dv_xname, chan); free(freqs, M_DEVBUF, 0); return (EIO); } if (letoh16(freqs->pof_freqlist_mhz[i]) < 5000) { if (!(phymode & htole32(PGT_OID_PHY_2400MHZ))) continue; if (country == letoh32(PGT_COUNTRY_USA)) { if (chan >= 12 && chan <= 14) continue; } if (chan <= 14) ic->ic_channels[chan].ic_flags |= IEEE80211_CHAN_B; ic->ic_channels[chan].ic_flags |= IEEE80211_CHAN_PUREG; } else { if (!(phymode & htole32(PGT_OID_PHY_5000MHZ))) continue; ic->ic_channels[chan].ic_flags |= IEEE80211_CHAN_A; } ic->ic_channels[chan].ic_freq = letoh16(freqs->pof_freqlist_mhz[i]); if (firstchan == -1) firstchan = chan; DPRINTF(("%s: set channel %d to freq %uMHz\n", sc->sc_dev.dv_xname, chan, letoh16(freqs->pof_freqlist_mhz[i]))); } free(freqs, M_DEVBUF, 0); if (firstchan == -1) { printf("%s: no channels found\n", sc->sc_dev.dv_xname); return (EIO); } /* * Set rates */ bzero(rates, sizeof(rates)); error = pgt_oid_get(sc, PGT_OID_SUPPORTED_RATES, rates, sizeof(rates)); if (error) return (error); for (i = 0; i < sizeof(rates) && rates[i] != 0; i++) { switch (rates[i]) { case 2: case 4: case 11: case 22: case 44: /* maybe */ if (phymode & htole32(PGT_OID_PHY_2400MHZ)) { rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; rs->rs_rates[rs->rs_nrates++] = rates[i]; } default: if (phymode & htole32(PGT_OID_PHY_2400MHZ)) { rs = &ic->ic_sup_rates[IEEE80211_MODE_11G]; rs->rs_rates[rs->rs_nrates++] = rates[i]; } if (phymode & htole32(PGT_OID_PHY_5000MHZ)) { rs = &ic->ic_sup_rates[IEEE80211_MODE_11A]; rs->rs_rates[rs->rs_nrates++] = rates[i]; } rs = &ic->ic_sup_rates[IEEE80211_MODE_AUTO]; rs->rs_rates[rs->rs_nrates++] = rates[i]; } } ic->ic_caps = IEEE80211_C_WEP | IEEE80211_C_PMGT | IEEE80211_C_TXPMGT | IEEE80211_C_SHSLOT | IEEE80211_C_SHPREAMBLE | IEEE80211_C_MONITOR; #ifndef IEEE80211_STA_ONLY ic->ic_caps |= IEEE80211_C_IBSS | IEEE80211_C_HOSTAP; #endif ic->ic_opmode = IEEE80211_M_STA; ic->ic_state = IEEE80211_S_INIT; if_attach(ifp); ieee80211_ifattach(ifp); /* setup post-attach/pre-lateattach vector functions */ sc->sc_newstate = ic->ic_newstate; ic->ic_newstate = pgt_newstate; ic->ic_node_alloc = pgt_ieee80211_node_alloc; ic->ic_newassoc = pgt_ieee80211_newassoc; ic->ic_node_free = pgt_ieee80211_node_free; ic->ic_node_copy = pgt_ieee80211_node_copy; ic->ic_send_mgmt = pgt_ieee80211_send_mgmt; ic->ic_max_rssi = 255; /* rssi is a u_int8_t */ /* let net80211 handle switching around the media + resetting */ ieee80211_media_init(ifp, pgt_media_change, pgt_media_status); #if NBPFILTER > 0 bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO, sizeof(struct ieee80211_frame) + 64); sc->sc_rxtap_len = sizeof(sc->sc_rxtapu); sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); sc->sc_rxtap.wr_ihdr.it_present = htole32(PGT_RX_RADIOTAP_PRESENT); sc->sc_txtap_len = sizeof(sc->sc_txtapu); sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); sc->sc_txtap.wt_ihdr.it_present = htole32(PGT_TX_RADIOTAP_PRESENT); #endif return (0); } int pgt_media_change(struct ifnet *ifp) { struct pgt_softc *sc = ifp->if_softc; int error; error = ieee80211_media_change(ifp); if (error == ENETRESET) { pgt_update_hw_from_sw(sc, 0, 0); error = 0; } return (error); } void pgt_media_status(struct ifnet *ifp, struct ifmediareq *imr) { struct pgt_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; uint32_t rate; int s; imr->ifm_status = 0; imr->ifm_active = IFM_IEEE80211 | IFM_NONE; if (!(ifp->if_flags & IFF_UP)) return; s = splnet(); if (ic->ic_fixed_rate != -1) { rate = ic->ic_sup_rates[ic->ic_curmode]. rs_rates[ic->ic_fixed_rate] & IEEE80211_RATE_VAL; } else { if (pgt_oid_get(sc, PGT_OID_LINK_STATE, &rate, sizeof(rate))) goto out; rate = letoh32(rate); if (sc->sc_debug & SC_DEBUG_LINK) { DPRINTF(("%s: %s: link rate %u\n", sc->sc_dev.dv_xname, __func__, rate)); } if (rate == 0) goto out; } imr->ifm_status = IFM_AVALID; imr->ifm_active = IFM_IEEE80211; if (ic->ic_state == IEEE80211_S_RUN) imr->ifm_status |= IFM_ACTIVE; imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); switch (ic->ic_opmode) { case IEEE80211_M_STA: break; #ifndef IEEE80211_STA_ONLY case IEEE80211_M_IBSS: imr->ifm_active |= IFM_IEEE80211_ADHOC; break; case IEEE80211_M_AHDEMO: imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0; break; case IEEE80211_M_HOSTAP: imr->ifm_active |= IFM_IEEE80211_HOSTAP; break; #endif case IEEE80211_M_MONITOR: imr->ifm_active |= IFM_IEEE80211_MONITOR; break; default: break; } out: splx(s); } /* * Start data frames. Critical sections surround the boundary of * management frame transmission / transmission acknowledgement / response * and data frame transmission / transmission acknowledgement. */ void pgt_start(struct ifnet *ifp) { struct pgt_softc *sc; struct ieee80211com *ic; struct pgt_desc *pd; struct mbuf *m; int error; sc = ifp->if_softc; ic = &sc->sc_ic; if (sc->sc_flags & (SC_DYING | SC_NEEDS_RESET) || !(ifp->if_flags & IFF_RUNNING) || ic->ic_state != IEEE80211_S_RUN) { return; } /* * Management packets should probably be MLME frames * (i.e. hostap "managed" mode); we don't touch the * net80211 management queue. */ for (; sc->sc_dirtyq_count[PGT_QUEUE_DATA_LOW_TX] < PGT_QUEUE_FULL_THRESHOLD && !IFQ_IS_EMPTY(&ifp->if_snd);) { pd = TAILQ_FIRST(&sc->sc_freeq[PGT_QUEUE_DATA_LOW_TX]); IFQ_POLL(&ifp->if_snd, m); if (m == NULL) break; if (m->m_pkthdr.len <= PGT_FRAG_SIZE) { error = pgt_load_tx_desc_frag(sc, PGT_QUEUE_DATA_LOW_TX, pd); if (error) break; IFQ_DEQUEUE(&ifp->if_snd, m); m_copydata(m, 0, m->m_pkthdr.len, pd->pd_mem); pgt_desc_transmit(sc, PGT_QUEUE_DATA_LOW_TX, pd, m->m_pkthdr.len, 0); } else if (m->m_pkthdr.len <= PGT_FRAG_SIZE * 2) { struct pgt_desc *pd2; /* * Transmit a fragmented frame if there is * not enough room in one fragment; limit * to two fragments (802.11 itself couldn't * even support a full two.) */ if (sc->sc_dirtyq_count[PGT_QUEUE_DATA_LOW_TX] + 2 > PGT_QUEUE_FULL_THRESHOLD) break; pd2 = TAILQ_NEXT(pd, pd_link); error = pgt_load_tx_desc_frag(sc, PGT_QUEUE_DATA_LOW_TX, pd); if (error == 0) { error = pgt_load_tx_desc_frag(sc, PGT_QUEUE_DATA_LOW_TX, pd2); if (error) { pgt_unload_tx_desc_frag(sc, pd); TAILQ_INSERT_HEAD(&sc->sc_freeq[ PGT_QUEUE_DATA_LOW_TX], pd, pd_link); } } if (error) break; IFQ_DEQUEUE(&ifp->if_snd, m); m_copydata(m, 0, PGT_FRAG_SIZE, pd->pd_mem); pgt_desc_transmit(sc, PGT_QUEUE_DATA_LOW_TX, pd, PGT_FRAG_SIZE, 1); m_copydata(m, PGT_FRAG_SIZE, m->m_pkthdr.len - PGT_FRAG_SIZE, pd2->pd_mem); pgt_desc_transmit(sc, PGT_QUEUE_DATA_LOW_TX, pd2, m->m_pkthdr.len - PGT_FRAG_SIZE, 0); } else { IFQ_DEQUEUE(&ifp->if_snd, m); ifp->if_oerrors++; m_freem(m); m = NULL; } if (m != NULL) { struct ieee80211_node *ni; #if NBPFILTER > 0 if (ifp->if_bpf != NULL) bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_OUT); #endif ifp->if_opackets++; ifp->if_timer = 1; sc->sc_txtimer = 5; ni = ieee80211_find_txnode(&sc->sc_ic, mtod(m, struct ether_header *)->ether_dhost); if (ni != NULL) { ni->ni_inact = 0; if (ni != ic->ic_bss) ieee80211_release_node(&sc->sc_ic, ni); } #if NBPFILTER > 0 if (sc->sc_drvbpf != NULL) { struct mbuf mb; struct ether_header eh; struct pgt_tx_radiotap_hdr *tap = &sc->sc_txtap; bcopy(mtod(m, struct ether_header *), &eh, sizeof(eh)); m_adj(m, sizeof(eh)); m = pgt_ieee80211_encap(sc, &eh, m, NULL); tap->wt_flags = 0; //tap->wt_rate = rate; tap->wt_rate = 0; tap->wt_chan_freq = htole16(ic->ic_bss->ni_chan->ic_freq); tap->wt_chan_flags = htole16(ic->ic_bss->ni_chan->ic_flags); if (m != NULL) { mb.m_data = (caddr_t)tap; mb.m_len = sc->sc_txtap_len; mb.m_next = m; mb.m_nextpkt = NULL; mb.m_type = 0; mb.m_flags = 0; bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_OUT); } } #endif if (m != NULL) m_freem(m); } } } int pgt_ioctl(struct ifnet *ifp, u_long cmd, caddr_t req) { struct pgt_softc *sc = ifp->if_softc; struct ifaddr *ifa; struct ifreq *ifr; struct wi_req *wreq; struct ieee80211_nodereq_all *na; struct ieee80211com *ic; struct pgt_obj_bsslist *pob; struct wi_scan_p2_hdr *p2hdr; struct wi_scan_res *res; uint32_t noise; int maxscan, i, j, s, error = 0; ic = &sc->sc_ic; ifr = (struct ifreq *)req; s = splnet(); switch (cmd) { case SIOCS80211SCAN: /* * This chip scans always as soon as it gets initialized. */ /* * Give us a bit time to scan in case we were not * initialized before and let the userland process wait. */ tsleep(&sc->sc_flags, 0, "pgtsca", hz * SCAN_TIMEOUT); break; case SIOCG80211ALLNODES: { struct ieee80211_nodereq *nr = NULL; na = (struct ieee80211_nodereq_all *)req; wreq = malloc(sizeof(*wreq), M_DEVBUF, M_WAITOK | M_ZERO); maxscan = PGT_OBJ_BSSLIST_NBSS; pob = malloc(sizeof(*pob) + sizeof(struct pgt_obj_bss) * maxscan, M_DEVBUF, M_WAITOK); error = pgt_oid_get(sc, PGT_OID_NOISE_FLOOR, &noise, sizeof(noise)); if (error == 0) { noise = letoh32(noise); error = pgt_oid_get(sc, PGT_OID_BSS_LIST, pob, sizeof(*pob) + sizeof(struct pgt_obj_bss) * maxscan); } if (error == 0) { maxscan = min(PGT_OBJ_BSSLIST_NBSS, letoh32(pob->pob_count)); maxscan = min(maxscan, (sizeof(wreq->wi_val) - sizeof(*p2hdr)) / WI_PRISM2_RES_SIZE); p2hdr = (struct wi_scan_p2_hdr *)&wreq->wi_val; p2hdr->wi_rsvd = 0; p2hdr->wi_reason = 1; wreq->wi_len = (maxscan * WI_PRISM2_RES_SIZE) / 2 + sizeof(*p2hdr) / 2; wreq->wi_type = WI_RID_SCAN_RES; } for (na->na_nodes = j = i = 0; i < maxscan && (na->na_size >= j + sizeof(struct ieee80211_nodereq)); i++) { /* allocate node space */ if (nr == NULL) nr = malloc(sizeof(*nr), M_DEVBUF, M_WAITOK); /* get next BSS scan result */ res = (struct wi_scan_res *) ((char *)&wreq->wi_val + sizeof(*p2hdr) + i * WI_PRISM2_RES_SIZE); pgt_obj_bss2scanres(sc, &pob->pob_bsslist[i], res, noise); /* copy it to node structure for ifconfig to read */ bzero(nr, sizeof(*nr)); IEEE80211_ADDR_COPY(nr->nr_macaddr, res->wi_bssid); IEEE80211_ADDR_COPY(nr->nr_bssid, res->wi_bssid); nr->nr_channel = letoh16(res->wi_chan); nr->nr_chan_flags = IEEE80211_CHAN_B; nr->nr_rssi = letoh16(res->wi_signal); nr->nr_max_rssi = 0; /* XXX */ nr->nr_nwid_len = letoh16(res->wi_ssid_len); bcopy(res->wi_ssid, nr->nr_nwid, nr->nr_nwid_len); nr->nr_intval = letoh16(res->wi_interval); nr->nr_capinfo = letoh16(res->wi_capinfo); nr->nr_txrate = res->wi_rate == WI_WAVELAN_RES_1M ? 2 : (res->wi_rate == WI_WAVELAN_RES_2M ? 4 : (res->wi_rate == WI_WAVELAN_RES_5M ? 11 : (res->wi_rate == WI_WAVELAN_RES_11M ? 22 : 0))); nr->nr_nrates = 0; while (res->wi_srates[nr->nr_nrates] != 0) { nr->nr_rates[nr->nr_nrates] = res->wi_srates[nr->nr_nrates] & WI_VAR_SRATES_MASK; nr->nr_nrates++; } nr->nr_flags = 0; if (bcmp(nr->nr_macaddr, nr->nr_bssid, IEEE80211_ADDR_LEN) == 0) nr->nr_flags |= IEEE80211_NODEREQ_AP; error = copyout(nr, (caddr_t)na->na_node + j, sizeof(struct ieee80211_nodereq)); if (error) break; /* point to next node entry */ j += sizeof(struct ieee80211_nodereq); na->na_nodes++; } if (nr) free(nr, M_DEVBUF, 0); free(pob, M_DEVBUF, 0); free(wreq, M_DEVBUF, 0); break; } case SIOCSIFADDR: ifa = (struct ifaddr *)req; ifp->if_flags |= IFF_UP; if (ifa->ifa_addr->sa_family == AF_INET) arp_ifinit(&sc->sc_ic.ic_ac, ifa); /* FALLTHROUGH */ case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if ((ifp->if_flags & IFF_RUNNING) == 0) { pgt_init(ifp); error = ENETRESET; } } else { if (ifp->if_flags & IFF_RUNNING) { pgt_stop(sc, SC_NEEDS_RESET); error = ENETRESET; } } break; case SIOCADDMULTI: case SIOCDELMULTI: error = (cmd == SIOCADDMULTI) ? ether_addmulti(ifr, &ic->ic_ac) : ether_delmulti(ifr, &ic->ic_ac); if (error == ENETRESET) error = 0; break; case SIOCSIFMTU: if (ifr->ifr_mtu > PGT_FRAG_SIZE) { error = EINVAL; break; } /* FALLTHROUGH */ default: error = ieee80211_ioctl(ifp, cmd, req); break; } if (error == ENETRESET) { pgt_update_hw_from_sw(sc, 0, 0); error = 0; } splx(s); return (error); } void pgt_obj_bss2scanres(struct pgt_softc *sc, struct pgt_obj_bss *pob, struct wi_scan_res *scanres, uint32_t noise) { struct ieee80211_rateset *rs; struct wi_scan_res ap; unsigned int i, n; rs = &sc->sc_ic.ic_sup_rates[IEEE80211_MODE_AUTO]; bzero(&ap, sizeof(ap)); ap.wi_chan = ieee80211_mhz2ieee(letoh16(pob->pob_channel), 0); ap.wi_noise = noise; ap.wi_signal = letoh16(pob->pob_rssi); IEEE80211_ADDR_COPY(ap.wi_bssid, pob->pob_address); ap.wi_interval = letoh16(pob->pob_beacon_period); ap.wi_capinfo = letoh16(pob->pob_capinfo); ap.wi_ssid_len = min(sizeof(ap.wi_ssid), pob->pob_ssid.pos_length); memcpy(ap.wi_ssid, pob->pob_ssid.pos_ssid, ap.wi_ssid_len); n = 0; for (i = 0; i < 16; i++) { if (letoh16(pob->pob_rates) & (1 << i)) { if (i > rs->rs_nrates) break; ap.wi_srates[n++] = ap.wi_rate = rs->rs_rates[i]; if (n >= sizeof(ap.wi_srates) / sizeof(ap.wi_srates[0])) break; } } memcpy(scanres, &ap, WI_PRISM2_RES_SIZE); } void node_mark_active_ap(void *arg, struct ieee80211_node *ni) { /* * HostAP mode lets all nodes stick around unless * the firmware AP kicks them off. */ ni->ni_inact = 0; } void node_mark_active_adhoc(void *arg, struct ieee80211_node *ni) { struct pgt_ieee80211_node *pin; /* * As there is no association in ad-hoc, we let links just * time out naturally as long they are not holding any private * configuration, such as 802.1x authorization. */ pin = (struct pgt_ieee80211_node *)ni; if (pin->pin_dot1x_auth == PIN_DOT1X_AUTHORIZED) pin->pin_node.ni_inact = 0; } void pgt_watchdog(struct ifnet *ifp) { struct pgt_softc *sc; sc = ifp->if_softc; /* * Check for timed out transmissions (and make sure to set * this watchdog to fire again if there is still data in the * output device queue). */ if (sc->sc_dirtyq_count[PGT_QUEUE_DATA_LOW_TX] != 0) { int count; ifp->if_timer = 1; if (sc->sc_txtimer && --sc->sc_txtimer == 0) { count = pgt_drain_tx_queue(sc, PGT_QUEUE_DATA_LOW_TX); if (sc->sc_debug & SC_DEBUG_UNEXPECTED) DPRINTF(("%s: timeout %d data transmissions\n", sc->sc_dev.dv_xname, count)); } } if (sc->sc_flags & (SC_DYING | SC_NEEDS_RESET)) return; /* * If we're goign to kick the device out of power-save mode * just to update the BSSID and such, we should not do it * very often; need to determine in what way to do that. */ if (ifp->if_flags & IFF_RUNNING && sc->sc_ic.ic_state != IEEE80211_S_INIT && sc->sc_ic.ic_opmode != IEEE80211_M_MONITOR) pgt_async_update(sc); #ifndef IEEE80211_STA_ONLY /* * As a firmware-based HostAP, we should not time out * nodes inside the driver additionally to the timeout * that exists in the firmware. The only things we * should have to deal with timing out when doing HostAP * are the privacy-related. */ switch (sc->sc_ic.ic_opmode) { case IEEE80211_M_HOSTAP: ieee80211_iterate_nodes(&sc->sc_ic, node_mark_active_ap, NULL); break; case IEEE80211_M_IBSS: ieee80211_iterate_nodes(&sc->sc_ic, node_mark_active_adhoc, NULL); break; default: break; } #endif ieee80211_watchdog(ifp); ifp->if_timer = 1; } int pgt_init(struct ifnet *ifp) { struct pgt_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; /* set default channel */ ic->ic_bss->ni_chan = ic->ic_ibss_chan; if (!(sc->sc_flags & (SC_DYING | SC_UNINITIALIZED))) pgt_update_hw_from_sw(sc, ic->ic_state != IEEE80211_S_INIT, ic->ic_opmode != IEEE80211_M_MONITOR); ifp->if_flags |= IFF_RUNNING; ifp->if_flags &= ~IFF_OACTIVE; /* Begin background scanning */ ieee80211_new_state(&sc->sc_ic, IEEE80211_S_SCAN, -1); return (0); } /* * After most every configuration change, everything needs to be fully * reinitialized. For some operations (currently, WEP settings * in ad-hoc+802.1x mode), the change is "soft" and doesn't remove * "associations," and allows EAP authorization to occur again. * If keepassoc is specified, the reset operation should try to go * back to the BSS had before. */ void pgt_update_hw_from_sw(struct pgt_softc *sc, int keepassoc, int keepnodes) { struct ieee80211com *ic = &sc->sc_ic; struct arpcom *ac = &ic->ic_ac; struct ifnet *ifp = &ac->ac_if; struct pgt_obj_key keyobj; struct pgt_obj_ssid essid; uint8_t availrates[IEEE80211_RATE_MAXSIZE + 1]; uint32_t mode, bsstype, config, profile, channel, slot, preamble; uint32_t wep, exunencrypted, wepkey, dot1x, auth, mlme; unsigned int i; int success, shouldbeup, s; config = PGT_CONFIG_MANUAL_RUN | PGT_CONFIG_RX_ANNEX; /* * Promiscuous mode is currently a no-op since packets transmitted, * while in promiscuous mode, don't ever seem to go anywhere. */ shouldbeup = ifp->if_flags & IFF_RUNNING && ifp->if_flags & IFF_UP; if (shouldbeup) { switch (ic->ic_opmode) { case IEEE80211_M_STA: if (ifp->if_flags & IFF_PROMISC) mode = PGT_MODE_CLIENT; /* what to do? */ else mode = PGT_MODE_CLIENT; bsstype = PGT_BSS_TYPE_STA; dot1x = PGT_DOT1X_AUTH_ENABLED; break; #ifndef IEEE80211_STA_ONLY case IEEE80211_M_IBSS: if (ifp->if_flags & IFF_PROMISC) mode = PGT_MODE_CLIENT; /* what to do? */ else mode = PGT_MODE_CLIENT; bsstype = PGT_BSS_TYPE_IBSS; dot1x = PGT_DOT1X_AUTH_ENABLED; break; case IEEE80211_M_HOSTAP: mode = PGT_MODE_AP; bsstype = PGT_BSS_TYPE_STA; /* * For IEEE 802.1x, we need to authenticate and * authorize hosts from here on or they remain * associated but without the ability to send or * receive normal traffic to us (courtesy the * firmware AP implementation). */ dot1x = PGT_DOT1X_AUTH_ENABLED; /* * WDS mode needs several things to work: * discovery of exactly how creating the WDS * links is meant to function, an interface * for this, and ability to encode or decode * the WDS frames. */ if (sc->sc_wds) config |= PGT_CONFIG_WDS; break; #endif case IEEE80211_M_MONITOR: mode = PGT_MODE_PROMISCUOUS; bsstype = PGT_BSS_TYPE_ANY; dot1x = PGT_DOT1X_AUTH_NONE; break; default: goto badopmode; } } else { badopmode: mode = PGT_MODE_CLIENT; bsstype = PGT_BSS_TYPE_NONE; } DPRINTF(("%s: current mode is ", sc->sc_dev.dv_xname)); switch (ic->ic_curmode) { case IEEE80211_MODE_11A: profile = PGT_PROFILE_A_ONLY; preamble = PGT_OID_PREAMBLE_MODE_DYNAMIC; DPRINTF(("IEEE80211_MODE_11A\n")); break; case IEEE80211_MODE_11B: profile = PGT_PROFILE_B_ONLY; preamble = PGT_OID_PREAMBLE_MODE_LONG; DPRINTF(("IEEE80211_MODE_11B\n")); break; case IEEE80211_MODE_11G: profile = PGT_PROFILE_G_ONLY; preamble = PGT_OID_PREAMBLE_MODE_SHORT; DPRINTF(("IEEE80211_MODE_11G\n")); break; case IEEE80211_MODE_TURBO: /* not handled */ /* FALLTHROUGH */ case IEEE80211_MODE_AUTO: profile = PGT_PROFILE_MIXED_G_WIFI; preamble = PGT_OID_PREAMBLE_MODE_DYNAMIC; DPRINTF(("IEEE80211_MODE_AUTO\n")); break; default: panic("unknown mode %d", ic->ic_curmode); } switch (sc->sc_80211_ioc_auth) { case IEEE80211_AUTH_NONE: auth = PGT_AUTH_MODE_NONE; break; case IEEE80211_AUTH_OPEN: auth = PGT_AUTH_MODE_OPEN; break; default: auth = PGT_AUTH_MODE_SHARED; break; } if (sc->sc_ic.ic_flags & IEEE80211_F_WEPON) { wep = 1; exunencrypted = 1; } else { wep = 0; exunencrypted = 0; } mlme = htole32(PGT_MLME_AUTO_LEVEL_AUTO); wep = htole32(wep); exunencrypted = htole32(exunencrypted); profile = htole32(profile); preamble = htole32(preamble); bsstype = htole32(bsstype); config = htole32(config); mode = htole32(mode); if (!wep || !sc->sc_dot1x) dot1x = PGT_DOT1X_AUTH_NONE; dot1x = htole32(dot1x); auth = htole32(auth); if (ic->ic_flags & IEEE80211_F_SHSLOT) slot = htole32(PGT_OID_SLOT_MODE_SHORT); else slot = htole32(PGT_OID_SLOT_MODE_DYNAMIC); if (ic->ic_des_chan == IEEE80211_CHAN_ANYC) { if (keepassoc) channel = 0; else channel = ieee80211_chan2ieee(ic, ic->ic_bss->ni_chan); } else channel = ieee80211_chan2ieee(ic, ic->ic_des_chan); DPRINTF(("%s: set rates", sc->sc_dev.dv_xname)); for (i = 0; i < ic->ic_sup_rates[ic->ic_curmode].rs_nrates; i++) { availrates[i] = ic->ic_sup_rates[ic->ic_curmode].rs_rates[i]; DPRINTF((" %d", availrates[i])); } DPRINTF(("\n")); availrates[i++] = 0; essid.pos_length = min(ic->ic_des_esslen, sizeof(essid.pos_ssid)); memcpy(&essid.pos_ssid, ic->ic_des_essid, essid.pos_length); s = splnet(); for (success = 0; success == 0; success = 1) { SETOID(PGT_OID_PROFILE, &profile, sizeof(profile)); SETOID(PGT_OID_CONFIG, &config, sizeof(config)); SETOID(PGT_OID_MLME_AUTO_LEVEL, &mlme, sizeof(mlme)); if (!IEEE80211_ADDR_EQ(ic->ic_myaddr, ac->ac_enaddr)) { SETOID(PGT_OID_MAC_ADDRESS, ac->ac_enaddr, sizeof(ac->ac_enaddr)); IEEE80211_ADDR_COPY(ic->ic_myaddr, ac->ac_enaddr); } SETOID(PGT_OID_MODE, &mode, sizeof(mode)); SETOID(PGT_OID_BSS_TYPE, &bsstype, sizeof(bsstype)); if (channel != 0 && channel != IEEE80211_CHAN_ANY) SETOID(PGT_OID_CHANNEL, &channel, sizeof(channel)); if (ic->ic_flags & IEEE80211_F_DESBSSID) { SETOID(PGT_OID_BSSID, ic->ic_des_bssid, sizeof(ic->ic_des_bssid)); } else if (keepassoc) { SETOID(PGT_OID_BSSID, ic->ic_bss->ni_bssid, sizeof(ic->ic_bss->ni_bssid)); } SETOID(PGT_OID_SSID, &essid, sizeof(essid)); if (ic->ic_des_esslen > 0) SETOID(PGT_OID_SSID_OVERRIDE, &essid, sizeof(essid)); SETOID(PGT_OID_RATES, &availrates, i); SETOID(PGT_OID_EXTENDED_RATES, &availrates, i); SETOID(PGT_OID_PREAMBLE_MODE, &preamble, sizeof(preamble)); SETOID(PGT_OID_SLOT_MODE, &slot, sizeof(slot)); SETOID(PGT_OID_AUTH_MODE, &auth, sizeof(auth)); SETOID(PGT_OID_EXCLUDE_UNENCRYPTED, &exunencrypted, sizeof(exunencrypted)); SETOID(PGT_OID_DOT1X, &dot1x, sizeof(dot1x)); SETOID(PGT_OID_PRIVACY_INVOKED, &wep, sizeof(wep)); /* * Setting WEP key(s) */ if (letoh32(wep) != 0) { keyobj.pok_type = PGT_OBJ_KEY_TYPE_WEP; /* key 1 */ keyobj.pok_length = min(sizeof(keyobj.pok_key), IEEE80211_KEYBUF_SIZE); keyobj.pok_length = min(keyobj.pok_length, ic->ic_nw_keys[0].k_len); bcopy(ic->ic_nw_keys[0].k_key, keyobj.pok_key, keyobj.pok_length); SETOID(PGT_OID_DEFAULT_KEY0, &keyobj, sizeof(keyobj)); /* key 2 */ keyobj.pok_length = min(sizeof(keyobj.pok_key), IEEE80211_KEYBUF_SIZE); keyobj.pok_length = min(keyobj.pok_length, ic->ic_nw_keys[1].k_len); bcopy(ic->ic_nw_keys[1].k_key, keyobj.pok_key, keyobj.pok_length); SETOID(PGT_OID_DEFAULT_KEY1, &keyobj, sizeof(keyobj)); /* key 3 */ keyobj.pok_length = min(sizeof(keyobj.pok_key), IEEE80211_KEYBUF_SIZE); keyobj.pok_length = min(keyobj.pok_length, ic->ic_nw_keys[2].k_len); bcopy(ic->ic_nw_keys[2].k_key, keyobj.pok_key, keyobj.pok_length); SETOID(PGT_OID_DEFAULT_KEY2, &keyobj, sizeof(keyobj)); /* key 4 */ keyobj.pok_length = min(sizeof(keyobj.pok_key), IEEE80211_KEYBUF_SIZE); keyobj.pok_length = min(keyobj.pok_length, ic->ic_nw_keys[3].k_len); bcopy(ic->ic_nw_keys[3].k_key, keyobj.pok_key, keyobj.pok_length); SETOID(PGT_OID_DEFAULT_KEY3, &keyobj, sizeof(keyobj)); wepkey = htole32(ic->ic_wep_txkey); SETOID(PGT_OID_DEFAULT_KEYNUM, &wepkey, sizeof(wepkey)); } /* set mode again to commit */ SETOID(PGT_OID_MODE, &mode, sizeof(mode)); } splx(s); if (success) { if (shouldbeup && keepnodes) sc->sc_flags |= SC_NOFREE_ALLNODES; if (shouldbeup) ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); else ieee80211_new_state(ic, IEEE80211_S_INIT, -1); } else { printf("%s: problem setting modes\n", sc->sc_dev.dv_xname); ieee80211_new_state(ic, IEEE80211_S_INIT, -1); } } void pgt_hostap_handle_mlme(struct pgt_softc *sc, uint32_t oid, struct pgt_obj_mlme *mlme) { struct ieee80211com *ic = &sc->sc_ic; struct pgt_ieee80211_node *pin; struct ieee80211_node *ni; ni = ieee80211_find_node(ic, mlme->pom_address); pin = (struct pgt_ieee80211_node *)ni; switch (oid) { case PGT_OID_DISASSOCIATE: if (ni != NULL) ieee80211_release_node(&sc->sc_ic, ni); break; case PGT_OID_ASSOCIATE: if (ni == NULL) { ni = ieee80211_dup_bss(ic, mlme->pom_address); if (ni == NULL) break; ic->ic_newassoc(ic, ni, 1); pin = (struct pgt_ieee80211_node *)ni; } ni->ni_associd = letoh16(mlme->pom_id); pin->pin_mlme_state = letoh16(mlme->pom_state); break; default: if (pin != NULL) pin->pin_mlme_state = letoh16(mlme->pom_state); break; } } /* * Either in response to an event or after a certain amount of time, * synchronize our idea of the network we're part of from the hardware. */ void pgt_update_sw_from_hw(struct pgt_softc *sc, struct pgt_async_trap *pa, struct mbuf *args) { struct ieee80211com *ic = &sc->sc_ic; struct pgt_obj_ssid ssid; struct pgt_obj_bss bss; uint32_t channel, noise, ls; int error, s; if (pa != NULL) { struct pgt_obj_mlme *mlme; uint32_t oid; oid = *mtod(args, uint32_t *); m_adj(args, sizeof(uint32_t)); if (sc->sc_debug & SC_DEBUG_TRAP) DPRINTF(("%s: trap: oid %#x len %u\n", sc->sc_dev.dv_xname, oid, args->m_len)); switch (oid) { case PGT_OID_LINK_STATE: if (args->m_len < sizeof(uint32_t)) break; ls = letoh32(*mtod(args, uint32_t *)); if (sc->sc_debug & (SC_DEBUG_TRAP | SC_DEBUG_LINK)) DPRINTF(("%s: %s: link rate %u\n", sc->sc_dev.dv_xname, __func__, ls)); if (ls) ieee80211_new_state(ic, IEEE80211_S_RUN, -1); else ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); goto gotlinkstate; case PGT_OID_DEAUTHENTICATE: case PGT_OID_AUTHENTICATE: case PGT_OID_DISASSOCIATE: case PGT_OID_ASSOCIATE: if (args->m_len < sizeof(struct pgt_obj_mlme)) break; mlme = mtod(args, struct pgt_obj_mlme *); if (sc->sc_debug & SC_DEBUG_TRAP) DPRINTF(("%s: mlme: address " "%s id 0x%02x state 0x%02x code 0x%02x\n", sc->sc_dev.dv_xname, ether_sprintf(mlme->pom_address), letoh16(mlme->pom_id), letoh16(mlme->pom_state), letoh16(mlme->pom_code))); #ifndef IEEE80211_STA_ONLY if (ic->ic_opmode == IEEE80211_M_HOSTAP) pgt_hostap_handle_mlme(sc, oid, mlme); #endif break; } return; } if (ic->ic_state == IEEE80211_S_SCAN) { s = splnet(); error = pgt_oid_get(sc, PGT_OID_LINK_STATE, &ls, sizeof(ls)); splx(s); if (error) return; DPRINTF(("%s: up_sw_from_hw: link %u\n", sc->sc_dev.dv_xname, htole32(ls))); if (ls != 0) ieee80211_new_state(ic, IEEE80211_S_RUN, -1); } gotlinkstate: s = splnet(); if (pgt_oid_get(sc, PGT_OID_NOISE_FLOOR, &noise, sizeof(noise)) != 0) goto out; sc->sc_noise = letoh32(noise); if (ic->ic_state == IEEE80211_S_RUN) { if (pgt_oid_get(sc, PGT_OID_CHANNEL, &channel, sizeof(channel)) != 0) goto out; channel = min(letoh32(channel), IEEE80211_CHAN_MAX); ic->ic_bss->ni_chan = &ic->ic_channels[channel]; if (pgt_oid_get(sc, PGT_OID_BSSID, ic->ic_bss->ni_bssid, sizeof(ic->ic_bss->ni_bssid)) != 0) goto out; IEEE80211_ADDR_COPY(&bss.pob_address, ic->ic_bss->ni_bssid); error = pgt_oid_retrieve(sc, PGT_OID_BSS_FIND, &bss, sizeof(bss)); if (error == 0) ic->ic_bss->ni_rssi = bss.pob_rssi; else if (error != EPERM) goto out; error = pgt_oid_get(sc, PGT_OID_SSID, &ssid, sizeof(ssid)); if (error) goto out; ic->ic_bss->ni_esslen = min(ssid.pos_length, sizeof(ic->ic_bss->ni_essid)); memcpy(ic->ic_bss->ni_essid, ssid.pos_ssid, ssid.pos_length); } out: splx(s); } int pgt_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) { struct pgt_softc *sc = ic->ic_if.if_softc; enum ieee80211_state ostate; ostate = ic->ic_state; DPRINTF(("%s: newstate %s -> %s\n", sc->sc_dev.dv_xname, ieee80211_state_name[ostate], ieee80211_state_name[nstate])); switch (nstate) { case IEEE80211_S_INIT: if (sc->sc_dirtyq_count[PGT_QUEUE_DATA_LOW_TX] == 0) ic->ic_if.if_timer = 0; ic->ic_mgt_timer = 0; ic->ic_flags &= ~IEEE80211_F_SIBSS; ieee80211_free_allnodes(ic); break; case IEEE80211_S_SCAN: ic->ic_if.if_timer = 1; ic->ic_mgt_timer = 0; if (sc->sc_flags & SC_NOFREE_ALLNODES) sc->sc_flags &= ~SC_NOFREE_ALLNODES; else ieee80211_free_allnodes(ic); #ifndef IEEE80211_STA_ONLY /* Just use any old channel; we override it anyway. */ if (ic->ic_opmode == IEEE80211_M_HOSTAP) ieee80211_create_ibss(ic, ic->ic_ibss_chan); #endif break; case IEEE80211_S_RUN: ic->ic_if.if_timer = 1; break; default: break; } return (sc->sc_newstate(ic, nstate, arg)); } int pgt_drain_tx_queue(struct pgt_softc *sc, enum pgt_queue pq) { int wokeup = 0; bus_dmamap_sync(sc->sc_dmat, sc->sc_cbdmam, 0, sc->sc_cbdmam->dm_mapsize, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_PREWRITE); sc->sc_cb->pcb_device_curfrag[pq] = sc->sc_cb->pcb_driver_curfrag[pq]; bus_dmamap_sync(sc->sc_dmat, sc->sc_cbdmam, 0, sc->sc_cbdmam->dm_mapsize, BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_PREREAD); while (!TAILQ_EMPTY(&sc->sc_dirtyq[pq])) { struct pgt_desc *pd; pd = TAILQ_FIRST(&sc->sc_dirtyq[pq]); TAILQ_REMOVE(&sc->sc_dirtyq[pq], pd, pd_link); sc->sc_dirtyq_count[pq]--; TAILQ_INSERT_TAIL(&sc->sc_freeq[pq], pd, pd_link); sc->sc_freeq_count[pq]++; pgt_unload_tx_desc_frag(sc, pd); if (sc->sc_debug & SC_DEBUG_QUEUES) DPRINTF(("%s: queue: tx %u <- [%u] (drained)\n", sc->sc_dev.dv_xname, pd->pd_fragnum, pq)); wokeup++; if (pgt_queue_is_data(pq)) sc->sc_ic.ic_if.if_oerrors++; } return (wokeup); } int pgt_dma_alloc(struct pgt_softc *sc) { size_t size; int i, error, nsegs; for (i = 0; i < PGT_QUEUE_COUNT; i++) { TAILQ_INIT(&sc->sc_freeq[i]); TAILQ_INIT(&sc->sc_dirtyq[i]); } /* * control block */ size = sizeof(struct pgt_control_block); error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0, BUS_DMA_NOWAIT, &sc->sc_cbdmam); if (error != 0) { printf("%s: can not create DMA tag for control block\n", sc->sc_dev.dv_xname); goto out; } error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &sc->sc_cbdmas, 1, &nsegs, BUS_DMA_NOWAIT | BUS_DMA_ZERO); if (error != 0) { printf("%s: can not allocate DMA memory for control block\n", sc->sc_dev.dv_xname); goto out; } error = bus_dmamem_map(sc->sc_dmat, &sc->sc_cbdmas, nsegs, size, (caddr_t *)&sc->sc_cb, BUS_DMA_NOWAIT); if (error != 0) { printf("%s: can not map DMA memory for control block\n", sc->sc_dev.dv_xname); goto out; } error = bus_dmamap_load(sc->sc_dmat, sc->sc_cbdmam, sc->sc_cb, size, NULL, BUS_DMA_NOWAIT); if (error != 0) { printf("%s: can not load DMA map for control block\n", sc->sc_dev.dv_xname); goto out; } /* * powersave */ size = PGT_FRAG_SIZE * PGT_PSM_BUFFER_FRAME_COUNT; error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0, BUS_DMA_ALLOCNOW, &sc->sc_psmdmam); if (error != 0) { printf("%s: can not create DMA tag for powersave\n", sc->sc_dev.dv_xname); goto out; } error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &sc->sc_psmdmas, 1, &nsegs, BUS_DMA_NOWAIT | BUS_DMA_ZERO); if (error != 0) { printf("%s: can not allocate DMA memory for powersave\n", sc->sc_dev.dv_xname); goto out; } error = bus_dmamem_map(sc->sc_dmat, &sc->sc_psmdmas, nsegs, size, (caddr_t *)&sc->sc_psmbuf, BUS_DMA_NOWAIT); if (error != 0) { printf("%s: can not map DMA memory for powersave\n", sc->sc_dev.dv_xname); goto out; } error = bus_dmamap_load(sc->sc_dmat, sc->sc_psmdmam, sc->sc_psmbuf, size, NULL, BUS_DMA_WAITOK); if (error != 0) { printf("%s: can not load DMA map for powersave\n", sc->sc_dev.dv_xname); goto out; } /* * fragments */ error = pgt_dma_alloc_queue(sc, PGT_QUEUE_DATA_LOW_RX); if (error != 0) goto out; error = pgt_dma_alloc_queue(sc, PGT_QUEUE_DATA_LOW_TX); if (error != 0) goto out; error = pgt_dma_alloc_queue(sc, PGT_QUEUE_DATA_HIGH_RX); if (error != 0) goto out; error = pgt_dma_alloc_queue(sc, PGT_QUEUE_DATA_HIGH_TX); if (error != 0) goto out; error = pgt_dma_alloc_queue(sc, PGT_QUEUE_MGMT_RX); if (error != 0) goto out; error = pgt_dma_alloc_queue(sc, PGT_QUEUE_MGMT_TX); if (error != 0) goto out; out: if (error) { printf("%s: error in DMA allocation\n", sc->sc_dev.dv_xname); pgt_dma_free(sc); } return (error); } int pgt_dma_alloc_queue(struct pgt_softc *sc, enum pgt_queue pq) { struct pgt_desc *pd; size_t i, qsize; int error, nsegs; switch (pq) { case PGT_QUEUE_DATA_LOW_RX: qsize = PGT_QUEUE_DATA_RX_SIZE; break; case PGT_QUEUE_DATA_LOW_TX: qsize = PGT_QUEUE_DATA_TX_SIZE; break; case PGT_QUEUE_DATA_HIGH_RX: qsize = PGT_QUEUE_DATA_RX_SIZE; break; case PGT_QUEUE_DATA_HIGH_TX: qsize = PGT_QUEUE_DATA_TX_SIZE; break; case PGT_QUEUE_MGMT_RX: qsize = PGT_QUEUE_MGMT_SIZE; break; case PGT_QUEUE_MGMT_TX: qsize = PGT_QUEUE_MGMT_SIZE; break; default: return (EINVAL); } for (i = 0; i < qsize; i++) { pd = malloc(sizeof(*pd), M_DEVBUF, M_WAITOK); error = bus_dmamap_create(sc->sc_dmat, PGT_FRAG_SIZE, 1, PGT_FRAG_SIZE, 0, BUS_DMA_ALLOCNOW, &pd->pd_dmam); if (error != 0) { printf("%s: can not create DMA tag for fragment\n", sc->sc_dev.dv_xname); free(pd, M_DEVBUF, 0); break; } error = bus_dmamem_alloc(sc->sc_dmat, PGT_FRAG_SIZE, PAGE_SIZE, 0, &pd->pd_dmas, 1, &nsegs, BUS_DMA_WAITOK); if (error != 0) { printf("%s: error alloc frag %zu on queue %u\n", sc->sc_dev.dv_xname, i, pq); free(pd, M_DEVBUF, 0); break; } error = bus_dmamem_map(sc->sc_dmat, &pd->pd_dmas, nsegs, PGT_FRAG_SIZE, (caddr_t *)&pd->pd_mem, BUS_DMA_WAITOK); if (error != 0) { printf("%s: error map frag %zu on queue %u\n", sc->sc_dev.dv_xname, i, pq); free(pd, M_DEVBUF, 0); break; } if (pgt_queue_is_rx(pq)) { error = bus_dmamap_load(sc->sc_dmat, pd->pd_dmam, pd->pd_mem, PGT_FRAG_SIZE, NULL, BUS_DMA_NOWAIT); if (error != 0) { printf("%s: error load frag %zu on queue %u\n", sc->sc_dev.dv_xname, i, pq); bus_dmamem_free(sc->sc_dmat, &pd->pd_dmas, nsegs); free(pd, M_DEVBUF, 0); break; } pd->pd_dmaaddr = pd->pd_dmam->dm_segs[0].ds_addr; } TAILQ_INSERT_TAIL(&sc->sc_freeq[pq], pd, pd_link); } return (error); } void pgt_dma_free(struct pgt_softc *sc) { /* * fragments */ if (sc->sc_dmat != NULL) { pgt_dma_free_queue(sc, PGT_QUEUE_DATA_LOW_RX); pgt_dma_free_queue(sc, PGT_QUEUE_DATA_LOW_TX); pgt_dma_free_queue(sc, PGT_QUEUE_DATA_HIGH_RX); pgt_dma_free_queue(sc, PGT_QUEUE_DATA_HIGH_TX); pgt_dma_free_queue(sc, PGT_QUEUE_MGMT_RX); pgt_dma_free_queue(sc, PGT_QUEUE_MGMT_TX); } /* * powersave */ if (sc->sc_psmbuf != NULL) { bus_dmamap_unload(sc->sc_dmat, sc->sc_psmdmam); bus_dmamem_free(sc->sc_dmat, &sc->sc_psmdmas, 1); sc->sc_psmbuf = NULL; sc->sc_psmdmam = NULL; } /* * control block */ if (sc->sc_cb != NULL) { bus_dmamap_unload(sc->sc_dmat, sc->sc_cbdmam); bus_dmamem_free(sc->sc_dmat, &sc->sc_cbdmas, 1); sc->sc_cb = NULL; sc->sc_cbdmam = NULL; } } void pgt_dma_free_queue(struct pgt_softc *sc, enum pgt_queue pq) { struct pgt_desc *pd; while (!TAILQ_EMPTY(&sc->sc_freeq[pq])) { pd = TAILQ_FIRST(&sc->sc_freeq[pq]); TAILQ_REMOVE(&sc->sc_freeq[pq], pd, pd_link); if (pd->pd_dmam != NULL) { bus_dmamap_unload(sc->sc_dmat, pd->pd_dmam); pd->pd_dmam = NULL; } bus_dmamem_free(sc->sc_dmat, &pd->pd_dmas, 1); free(pd, M_DEVBUF, 0); } } int pgt_activate(struct device *self, int act) { struct pgt_softc *sc = (struct pgt_softc *)self; struct ifnet *ifp = &sc->sc_ic.ic_if; DPRINTF(("%s: %s(%d)\n", sc->sc_dev.dv_xname, __func__, why)); switch (act) { case DVACT_SUSPEND: if (ifp->if_flags & IFF_RUNNING) { pgt_stop(sc, SC_NEEDS_RESET); pgt_update_hw_from_sw(sc, 0, 0); } if (sc->sc_power != NULL) (*sc->sc_power)(sc, act); break; case DVACT_WAKEUP: pgt_wakeup(sc); break; } return 0; } void pgt_wakeup(struct pgt_softc *sc) { struct ifnet *ifp = &sc->sc_ic.ic_if; if (sc->sc_power != NULL) (*sc->sc_power)(sc, DVACT_RESUME); pgt_stop(sc, SC_NEEDS_RESET); pgt_update_hw_from_sw(sc, 0, 0); if (ifp->if_flags & IFF_UP) { pgt_init(ifp); pgt_update_hw_from_sw(sc, 0, 0); } }