/* * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright (c) 2008 Atheros Communications Inc. * * Permission to use, copy, modify, and/or 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. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "arn_ath9k.h" #include "arn_core.h" #include "arn_reg.h" #include "arn_hw.h" #define ARN_MAX_RSSI 45 /* max rssi */ /* * Default 11n reates supported by this station. */ extern struct ieee80211_htrateset ieee80211_rateset_11n; /* * PIO access attributes for registers */ static ddi_device_acc_attr_t arn_reg_accattr = { DDI_DEVICE_ATTR_V0, DDI_STRUCTURE_LE_ACC, DDI_STRICTORDER_ACC, DDI_DEFAULT_ACC }; /* * DMA access attributes for descriptors: NOT to be byte swapped. */ static ddi_device_acc_attr_t arn_desc_accattr = { DDI_DEVICE_ATTR_V0, DDI_STRUCTURE_LE_ACC, DDI_STRICTORDER_ACC, DDI_DEFAULT_ACC }; /* * Describes the chip's DMA engine */ static ddi_dma_attr_t arn_dma_attr = { DMA_ATTR_V0, /* version number */ 0, /* low address */ 0xffffffffU, /* high address */ 0x3ffffU, /* counter register max */ 1, /* alignment */ 0xFFF, /* burst sizes */ 1, /* minimum transfer size */ 0x3ffffU, /* max transfer size */ 0xffffffffU, /* address register max */ 1, /* no scatter-gather */ 1, /* granularity of device */ 0, /* DMA flags */ }; static ddi_dma_attr_t arn_desc_dma_attr = { DMA_ATTR_V0, /* version number */ 0, /* low address */ 0xffffffffU, /* high address */ 0xffffffffU, /* counter register max */ 0x1000, /* alignment */ 0xFFF, /* burst sizes */ 1, /* minimum transfer size */ 0xffffffffU, /* max transfer size */ 0xffffffffU, /* address register max */ 1, /* no scatter-gather */ 1, /* granularity of device */ 0, /* DMA flags */ }; #define ATH_DEF_CACHE_BYTES 32 /* default cache line size */ static kmutex_t arn_loglock; static void *arn_soft_state_p = NULL; static int arn_dwelltime = 200; /* scan interval */ static int arn_m_stat(void *, uint_t, uint64_t *); static int arn_m_start(void *); static void arn_m_stop(void *); static int arn_m_promisc(void *, boolean_t); static int arn_m_multicst(void *, boolean_t, const uint8_t *); static int arn_m_unicst(void *, const uint8_t *); static mblk_t *arn_m_tx(void *, mblk_t *); static void arn_m_ioctl(void *, queue_t *, mblk_t *); static int arn_m_setprop(void *, const char *, mac_prop_id_t, uint_t, const void *); static int arn_m_getprop(void *, const char *, mac_prop_id_t, uint_t, void *); static void arn_m_propinfo(void *, const char *, mac_prop_id_t, mac_prop_info_handle_t); /* MAC Callcack Functions */ static mac_callbacks_t arn_m_callbacks = { MC_IOCTL | MC_SETPROP | MC_GETPROP | MC_PROPINFO, arn_m_stat, arn_m_start, arn_m_stop, arn_m_promisc, arn_m_multicst, arn_m_unicst, arn_m_tx, NULL, arn_m_ioctl, NULL, NULL, NULL, arn_m_setprop, arn_m_getprop, arn_m_propinfo }; /* * ARN_DBG_HW * ARN_DBG_REG_IO * ARN_DBG_QUEUE * ARN_DBG_EEPROM * ARN_DBG_XMIT * ARN_DBG_RECV * ARN_DBG_CALIBRATE * ARN_DBG_CHANNEL * ARN_DBG_INTERRUPT * ARN_DBG_REGULATORY * ARN_DBG_ANI * ARN_DBG_POWER_MGMT * ARN_DBG_KEYCACHE * ARN_DBG_BEACON * ARN_DBG_RATE * ARN_DBG_INIT * ARN_DBG_ATTACH * ARN_DBG_DEATCH * ARN_DBG_AGGR * ARN_DBG_RESET * ARN_DBG_FATAL * ARN_DBG_ANY * ARN_DBG_ALL */ uint32_t arn_dbg_mask = 0; /* * Exception/warning cases not leading to panic. */ void arn_problem(const int8_t *fmt, ...) { va_list args; mutex_enter(&arn_loglock); va_start(args, fmt); vcmn_err(CE_WARN, fmt, args); va_end(args); mutex_exit(&arn_loglock); } /* * Normal log information independent of debug. */ void arn_log(const int8_t *fmt, ...) { va_list args; mutex_enter(&arn_loglock); va_start(args, fmt); vcmn_err(CE_CONT, fmt, args); va_end(args); mutex_exit(&arn_loglock); } void arn_dbg(uint32_t dbg_flags, const int8_t *fmt, ...) { va_list args; if (dbg_flags & arn_dbg_mask) { mutex_enter(&arn_loglock); va_start(args, fmt); vcmn_err(CE_CONT, fmt, args); va_end(args); mutex_exit(&arn_loglock); } } /* * Read and write, they both share the same lock. We do this to serialize * reads and writes on Atheros 802.11n PCI devices only. This is required * as the FIFO on these devices can only accept sanely 2 requests. After * that the device goes bananas. Serializing the reads/writes prevents this * from happening. */ void arn_iowrite32(struct ath_hal *ah, uint32_t reg_offset, uint32_t val) { struct arn_softc *sc = ah->ah_sc; if (ah->ah_config.serialize_regmode == SER_REG_MODE_ON) { mutex_enter(&sc->sc_serial_rw); ddi_put32(sc->sc_io_handle, (uint32_t *)((uintptr_t)(sc->mem) + (reg_offset)), val); mutex_exit(&sc->sc_serial_rw); } else { ddi_put32(sc->sc_io_handle, (uint32_t *)((uintptr_t)(sc->mem) + (reg_offset)), val); } } unsigned int arn_ioread32(struct ath_hal *ah, uint32_t reg_offset) { uint32_t val; struct arn_softc *sc = ah->ah_sc; if (ah->ah_config.serialize_regmode == SER_REG_MODE_ON) { mutex_enter(&sc->sc_serial_rw); val = ddi_get32(sc->sc_io_handle, (uint32_t *)((uintptr_t)(sc->mem) + (reg_offset))); mutex_exit(&sc->sc_serial_rw); } else { val = ddi_get32(sc->sc_io_handle, (uint32_t *)((uintptr_t)(sc->mem) + (reg_offset))); } return (val); } /* * Allocate an area of memory and a DMA handle for accessing it */ static int arn_alloc_dma_mem(dev_info_t *devinfo, ddi_dma_attr_t *dma_attr, size_t memsize, ddi_device_acc_attr_t *attr_p, uint_t alloc_flags, uint_t bind_flags, dma_area_t *dma_p) { int err; /* * Allocate handle */ err = ddi_dma_alloc_handle(devinfo, dma_attr, DDI_DMA_SLEEP, NULL, &dma_p->dma_hdl); if (err != DDI_SUCCESS) return (DDI_FAILURE); /* * Allocate memory */ err = ddi_dma_mem_alloc(dma_p->dma_hdl, memsize, attr_p, alloc_flags, DDI_DMA_SLEEP, NULL, &dma_p->mem_va, &dma_p->alength, &dma_p->acc_hdl); if (err != DDI_SUCCESS) return (DDI_FAILURE); /* * Bind the two together */ err = ddi_dma_addr_bind_handle(dma_p->dma_hdl, NULL, dma_p->mem_va, dma_p->alength, bind_flags, DDI_DMA_SLEEP, NULL, &dma_p->cookie, &dma_p->ncookies); if (err != DDI_DMA_MAPPED) return (DDI_FAILURE); dma_p->nslots = ~0U; dma_p->size = ~0U; dma_p->token = ~0U; dma_p->offset = 0; return (DDI_SUCCESS); } /* * Free one allocated area of DMAable memory */ static void arn_free_dma_mem(dma_area_t *dma_p) { if (dma_p->dma_hdl != NULL) { (void) ddi_dma_unbind_handle(dma_p->dma_hdl); if (dma_p->acc_hdl != NULL) { ddi_dma_mem_free(&dma_p->acc_hdl); dma_p->acc_hdl = NULL; } ddi_dma_free_handle(&dma_p->dma_hdl); dma_p->ncookies = 0; dma_p->dma_hdl = NULL; } } /* * Initialize tx, rx. or beacon buffer list. Allocate DMA memory for * each buffer. */ static int arn_buflist_setup(dev_info_t *devinfo, struct arn_softc *sc, list_t *bflist, struct ath_buf **pbf, struct ath_desc **pds, int nbuf, uint_t dmabflags, uint32_t buflen) { int i, err; struct ath_buf *bf = *pbf; struct ath_desc *ds = *pds; list_create(bflist, sizeof (struct ath_buf), offsetof(struct ath_buf, bf_node)); for (i = 0; i < nbuf; i++, bf++, ds++) { bf->bf_desc = ds; bf->bf_daddr = sc->sc_desc_dma.cookie.dmac_address + ((uintptr_t)ds - (uintptr_t)sc->sc_desc); list_insert_tail(bflist, bf); /* alloc DMA memory */ err = arn_alloc_dma_mem(devinfo, &arn_dma_attr, buflen, &arn_desc_accattr, DDI_DMA_STREAMING, dmabflags, &bf->bf_dma); if (err != DDI_SUCCESS) return (err); } *pbf = bf; *pds = ds; return (DDI_SUCCESS); } /* * Destroy tx, rx or beacon buffer list. Free DMA memory. */ static void arn_buflist_cleanup(list_t *buflist) { struct ath_buf *bf; if (!buflist) return; bf = list_head(buflist); while (bf != NULL) { if (bf->bf_m != NULL) { freemsg(bf->bf_m); bf->bf_m = NULL; } /* Free DMA buffer */ arn_free_dma_mem(&bf->bf_dma); if (bf->bf_in != NULL) { ieee80211_free_node(bf->bf_in); bf->bf_in = NULL; } list_remove(buflist, bf); bf = list_head(buflist); } list_destroy(buflist); } static void arn_desc_free(struct arn_softc *sc) { arn_buflist_cleanup(&sc->sc_txbuf_list); arn_buflist_cleanup(&sc->sc_rxbuf_list); #ifdef ARN_IBSS arn_buflist_cleanup(&sc->sc_bcbuf_list); #endif /* Free descriptor DMA buffer */ arn_free_dma_mem(&sc->sc_desc_dma); kmem_free((void *)sc->sc_vbufptr, sc->sc_vbuflen); sc->sc_vbufptr = NULL; } static int arn_desc_alloc(dev_info_t *devinfo, struct arn_softc *sc) { int err; size_t size; struct ath_desc *ds; struct ath_buf *bf; #ifdef ARN_IBSS size = sizeof (struct ath_desc) * (ATH_TXBUF + ATH_RXBUF + ATH_BCBUF); #else size = sizeof (struct ath_desc) * (ATH_TXBUF + ATH_RXBUF); #endif err = arn_alloc_dma_mem(devinfo, &arn_desc_dma_attr, size, &arn_desc_accattr, DDI_DMA_CONSISTENT, DDI_DMA_RDWR | DDI_DMA_CONSISTENT, &sc->sc_desc_dma); /* virtual address of the first descriptor */ sc->sc_desc = (struct ath_desc *)sc->sc_desc_dma.mem_va; ds = sc->sc_desc; ARN_DBG((ARN_DBG_INIT, "arn: arn_desc_alloc(): DMA map: " "%p (%d) -> %p\n", sc->sc_desc, sc->sc_desc_dma.alength, sc->sc_desc_dma.cookie.dmac_address)); /* allocate data structures to describe TX/RX DMA buffers */ #ifdef ARN_IBSS sc->sc_vbuflen = sizeof (struct ath_buf) * (ATH_TXBUF + ATH_RXBUF + ATH_BCBUF); #else sc->sc_vbuflen = sizeof (struct ath_buf) * (ATH_TXBUF + ATH_RXBUF); #endif bf = (struct ath_buf *)kmem_zalloc(sc->sc_vbuflen, KM_SLEEP); sc->sc_vbufptr = bf; /* DMA buffer size for each TX/RX packet */ #ifdef ARN_TX_AGGREGRATION sc->tx_dmabuf_size = roundup((IEEE80211_MAX_MPDU_LEN + 3840 * 2), min(sc->sc_cachelsz, (uint16_t)64)); #else sc->tx_dmabuf_size = roundup(IEEE80211_MAX_MPDU_LEN, min(sc->sc_cachelsz, (uint16_t)64)); #endif sc->rx_dmabuf_size = roundup(IEEE80211_MAX_MPDU_LEN, min(sc->sc_cachelsz, (uint16_t)64)); /* create RX buffer list */ err = arn_buflist_setup(devinfo, sc, &sc->sc_rxbuf_list, &bf, &ds, ATH_RXBUF, DDI_DMA_READ | DDI_DMA_STREAMING, sc->rx_dmabuf_size); if (err != DDI_SUCCESS) { arn_desc_free(sc); return (err); } /* create TX buffer list */ err = arn_buflist_setup(devinfo, sc, &sc->sc_txbuf_list, &bf, &ds, ATH_TXBUF, DDI_DMA_STREAMING, sc->tx_dmabuf_size); if (err != DDI_SUCCESS) { arn_desc_free(sc); return (err); } /* create beacon buffer list */ #ifdef ARN_IBSS err = arn_buflist_setup(devinfo, sc, &sc->sc_bcbuf_list, &bf, &ds, ATH_BCBUF, DDI_DMA_STREAMING); if (err != DDI_SUCCESS) { arn_desc_free(sc); return (err); } #endif return (DDI_SUCCESS); } static void arn_setcurmode(struct arn_softc *sc, enum wireless_mode mode) { struct ath_rate_table *rt; int i; for (i = 0; i < sizeof (sc->asc_rixmap); i++) sc->asc_rixmap[i] = 0xff; rt = sc->hw_rate_table[mode]; ASSERT(rt != NULL); for (i = 0; i < rt->rate_cnt; i++) sc->asc_rixmap[rt->info[i].dot11rate & IEEE80211_RATE_VAL] = (uint8_t)i; /* LINT */ sc->sc_currates = rt; sc->sc_curmode = mode; /* * All protection frames are transmited at 2Mb/s for * 11g, otherwise at 1Mb/s. * XXX select protection rate index from rate table. */ sc->sc_protrix = (mode == ATH9K_MODE_11G ? 1 : 0); } static enum wireless_mode arn_chan2mode(struct ath9k_channel *chan) { if (chan->chanmode == CHANNEL_A) return (ATH9K_MODE_11A); else if (chan->chanmode == CHANNEL_G) return (ATH9K_MODE_11G); else if (chan->chanmode == CHANNEL_B) return (ATH9K_MODE_11B); else if (chan->chanmode == CHANNEL_A_HT20) return (ATH9K_MODE_11NA_HT20); else if (chan->chanmode == CHANNEL_G_HT20) return (ATH9K_MODE_11NG_HT20); else if (chan->chanmode == CHANNEL_A_HT40PLUS) return (ATH9K_MODE_11NA_HT40PLUS); else if (chan->chanmode == CHANNEL_A_HT40MINUS) return (ATH9K_MODE_11NA_HT40MINUS); else if (chan->chanmode == CHANNEL_G_HT40PLUS) return (ATH9K_MODE_11NG_HT40PLUS); else if (chan->chanmode == CHANNEL_G_HT40MINUS) return (ATH9K_MODE_11NG_HT40MINUS); return (ATH9K_MODE_11B); } static void arn_update_txpow(struct arn_softc *sc) { struct ath_hal *ah = sc->sc_ah; uint32_t txpow; if (sc->sc_curtxpow != sc->sc_config.txpowlimit) { (void) ath9k_hw_set_txpowerlimit(ah, sc->sc_config.txpowlimit); /* read back in case value is clamped */ (void) ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow); sc->sc_curtxpow = (uint32_t)txpow; } } uint8_t parse_mpdudensity(uint8_t mpdudensity) { /* * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": * 0 for no restriction * 1 for 1/4 us * 2 for 1/2 us * 3 for 1 us * 4 for 2 us * 5 for 4 us * 6 for 8 us * 7 for 16 us */ switch (mpdudensity) { case 0: return (0); case 1: case 2: case 3: /* * Our lower layer calculations limit our * precision to 1 microsecond */ return (1); case 4: return (2); case 5: return (4); case 6: return (8); case 7: return (16); default: return (0); } } static void arn_setup_rates(struct arn_softc *sc, uint32_t mode) { int i, maxrates; struct ath_rate_table *rate_table = NULL; struct ieee80211_rateset *rateset; ieee80211com_t *ic = (ieee80211com_t *)sc; /* rate_table = arn_get_ratetable(sc, mode); */ switch (mode) { case IEEE80211_MODE_11A: rate_table = sc->hw_rate_table[ATH9K_MODE_11A]; break; case IEEE80211_MODE_11B: rate_table = sc->hw_rate_table[ATH9K_MODE_11B]; break; case IEEE80211_MODE_11G: rate_table = sc->hw_rate_table[ATH9K_MODE_11G]; break; #ifdef ARN_11N case IEEE80211_MODE_11NA_HT20: rate_table = sc->hw_rate_table[ATH9K_MODE_11NA_HT20]; break; case IEEE80211_MODE_11NG_HT20: rate_table = sc->hw_rate_table[ATH9K_MODE_11NG_HT20]; break; case IEEE80211_MODE_11NA_HT40PLUS: rate_table = sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS]; break; case IEEE80211_MODE_11NA_HT40MINUS: rate_table = sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS]; break; case IEEE80211_MODE_11NG_HT40PLUS: rate_table = sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS]; break; case IEEE80211_MODE_11NG_HT40MINUS: rate_table = sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS]; break; #endif default: ARN_DBG((ARN_DBG_RATE, "arn: arn_get_ratetable(): " "invalid mode %u\n", mode)); break; } if (rate_table == NULL) return; if (rate_table->rate_cnt > ATH_RATE_MAX) { ARN_DBG((ARN_DBG_RATE, "arn: arn_rate_setup(): " "rate table too small (%u > %u)\n", rate_table->rate_cnt, IEEE80211_RATE_MAXSIZE)); maxrates = ATH_RATE_MAX; } else maxrates = rate_table->rate_cnt; ARN_DBG((ARN_DBG_RATE, "arn: arn_rate_setup(): " "maxrates is %d\n", maxrates)); rateset = &ic->ic_sup_rates[mode]; for (i = 0; i < maxrates; i++) { rateset->ir_rates[i] = rate_table->info[i].dot11rate; ARN_DBG((ARN_DBG_RATE, "arn: arn_rate_setup(): " "%d\n", rate_table->info[i].dot11rate)); } rateset->ir_nrates = (uint8_t)maxrates; /* ??? */ } static int arn_setup_channels(struct arn_softc *sc) { struct ath_hal *ah = sc->sc_ah; ieee80211com_t *ic = (ieee80211com_t *)sc; int nchan, i, index; uint8_t regclassids[ATH_REGCLASSIDS_MAX]; uint32_t nregclass = 0; struct ath9k_channel *c; /* Fill in ah->ah_channels */ if (!ath9k_regd_init_channels(ah, ATH_CHAN_MAX, (uint32_t *)&nchan, regclassids, ATH_REGCLASSIDS_MAX, &nregclass, CTRY_DEFAULT, B_FALSE, 1)) { uint32_t rd = ah->ah_currentRD; ARN_DBG((ARN_DBG_CHANNEL, "arn: arn_setup_channels(): " "unable to collect channel list; " "regdomain likely %u country code %u\n", rd, CTRY_DEFAULT)); return (EINVAL); } ARN_DBG((ARN_DBG_CHANNEL, "arn: arn_setup_channels(): " "number of channel is %d\n", nchan)); for (i = 0; i < nchan; i++) { c = &ah->ah_channels[i]; uint32_t flags; index = ath9k_hw_mhz2ieee(ah, c->channel, c->channelFlags); if (index > IEEE80211_CHAN_MAX) { ARN_DBG((ARN_DBG_CHANNEL, "arn: arn_setup_channels(): " "bad hal channel %d (%u/%x) ignored\n", index, c->channel, c->channelFlags)); continue; } /* NB: flags are known to be compatible */ if (index < 0) { /* * can't handle frequency <2400MHz (negative * channels) right now */ ARN_DBG((ARN_DBG_CHANNEL, "arn: arn_setup_channels(): " "hal channel %d (%u/%x) " "cannot be handled, ignored\n", index, c->channel, c->channelFlags)); continue; } /* * Calculate net80211 flags; most are compatible * but some need massaging. Note the static turbo * conversion can be removed once net80211 is updated * to understand static vs. dynamic turbo. */ flags = c->channelFlags & (CHANNEL_ALL | CHANNEL_PASSIVE); if (ic->ic_sup_channels[index].ich_freq == 0) { ic->ic_sup_channels[index].ich_freq = c->channel; ic->ic_sup_channels[index].ich_flags = flags; } else { /* channels overlap; e.g. 11g and 11b */ ic->ic_sup_channels[index].ich_flags |= flags; } if ((c->channelFlags & CHANNEL_G) == CHANNEL_G) { sc->sc_have11g = 1; ic->ic_caps |= IEEE80211_C_SHPREAMBLE | IEEE80211_C_SHSLOT; /* short slot time */ } } return (0); } uint32_t arn_chan2flags(ieee80211com_t *isc, struct ieee80211_channel *chan) { uint32_t channel_mode; switch (ieee80211_chan2mode(isc, chan)) { case IEEE80211_MODE_11NA: if (chan->ich_flags & IEEE80211_CHAN_HT40U) channel_mode = CHANNEL_A_HT40PLUS; else if (chan->ich_flags & IEEE80211_CHAN_HT40D) channel_mode = CHANNEL_A_HT40MINUS; else channel_mode = CHANNEL_A_HT20; break; case IEEE80211_MODE_11NG: if (chan->ich_flags & IEEE80211_CHAN_HT40U) channel_mode = CHANNEL_G_HT40PLUS; else if (chan->ich_flags & IEEE80211_CHAN_HT40D) channel_mode = CHANNEL_G_HT40MINUS; else channel_mode = CHANNEL_G_HT20; break; case IEEE80211_MODE_TURBO_G: case IEEE80211_MODE_STURBO_A: case IEEE80211_MODE_TURBO_A: channel_mode = 0; break; case IEEE80211_MODE_11A: channel_mode = CHANNEL_A; break; case IEEE80211_MODE_11G: channel_mode = CHANNEL_B; break; case IEEE80211_MODE_11B: channel_mode = CHANNEL_G; break; case IEEE80211_MODE_FH: channel_mode = 0; break; default: break; } return (channel_mode); } /* * Update internal state after a channel change. */ void arn_chan_change(struct arn_softc *sc, struct ieee80211_channel *chan) { struct ieee80211com *ic = &sc->sc_isc; enum ieee80211_phymode mode; enum wireless_mode wlmode; /* * Change channels and update the h/w rate map * if we're switching; e.g. 11a to 11b/g. */ mode = ieee80211_chan2mode(ic, chan); switch (mode) { case IEEE80211_MODE_11A: wlmode = ATH9K_MODE_11A; break; case IEEE80211_MODE_11B: wlmode = ATH9K_MODE_11B; break; case IEEE80211_MODE_11G: wlmode = ATH9K_MODE_11B; break; default: break; } if (wlmode != sc->sc_curmode) arn_setcurmode(sc, wlmode); } /* * Set/change channels. If the channel is really being changed, it's done * by reseting the chip. To accomplish this we must first cleanup any pending * DMA, then restart stuff. */ static int arn_set_channel(struct arn_softc *sc, struct ath9k_channel *hchan) { struct ath_hal *ah = sc->sc_ah; ieee80211com_t *ic = &sc->sc_isc; boolean_t fastcc = B_TRUE; boolean_t stopped; struct ieee80211_channel chan; enum wireless_mode curmode; if (sc->sc_flags & SC_OP_INVALID) return (EIO); if (hchan->channel != sc->sc_ah->ah_curchan->channel || hchan->channelFlags != sc->sc_ah->ah_curchan->channelFlags || (sc->sc_flags & SC_OP_CHAINMASK_UPDATE) || (sc->sc_flags & SC_OP_FULL_RESET)) { int status; /* * This is only performed if the channel settings have * actually changed. * * To switch channels clear any pending DMA operations; * wait long enough for the RX fifo to drain, reset the * hardware at the new frequency, and then re-enable * the relevant bits of the h/w. */ (void) ath9k_hw_set_interrupts(ah, 0); /* disable interrupts */ arn_draintxq(sc, B_FALSE); /* clear pending tx frames */ stopped = arn_stoprecv(sc); /* turn off frame recv */ /* * XXX: do not flush receive queue here. We don't want * to flush data frames already in queue because of * changing channel. */ if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET)) fastcc = B_FALSE; ARN_DBG((ARN_DBG_CHANNEL, "arn: arn_set_channel(): " "(%u MHz) -> (%u MHz), cflags:%x, chanwidth: %d\n", sc->sc_ah->ah_curchan->channel, hchan->channel, hchan->channelFlags, sc->tx_chan_width)); if (!ath9k_hw_reset(ah, hchan, sc->tx_chan_width, sc->sc_tx_chainmask, sc->sc_rx_chainmask, sc->sc_ht_extprotspacing, fastcc, &status)) { ARN_DBG((ARN_DBG_FATAL, "arn: arn_set_channel(): " "unable to reset channel %u (%uMhz) " "flags 0x%x hal status %u\n", ath9k_hw_mhz2ieee(ah, hchan->channel, hchan->channelFlags), hchan->channel, hchan->channelFlags, status)); return (EIO); } sc->sc_curchan = *hchan; sc->sc_flags &= ~SC_OP_CHAINMASK_UPDATE; sc->sc_flags &= ~SC_OP_FULL_RESET; if (arn_startrecv(sc) != 0) { arn_problem("arn: arn_set_channel(): " "unable to restart recv logic\n"); return (EIO); } chan.ich_freq = hchan->channel; chan.ich_flags = hchan->channelFlags; ic->ic_ibss_chan = &chan; /* * Change channels and update the h/w rate map * if we're switching; e.g. 11a to 11b/g. */ curmode = arn_chan2mode(hchan); if (curmode != sc->sc_curmode) arn_setcurmode(sc, arn_chan2mode(hchan)); arn_update_txpow(sc); (void) ath9k_hw_set_interrupts(ah, sc->sc_imask); } return (0); } /* * This routine performs the periodic noise floor calibration function * that is used to adjust and optimize the chip performance. This * takes environmental changes (location, temperature) into account. * When the task is complete, it reschedules itself depending on the * appropriate interval that was calculated. */ static void arn_ani_calibrate(void *arg) { ieee80211com_t *ic = (ieee80211com_t *)arg; struct arn_softc *sc = (struct arn_softc *)ic; struct ath_hal *ah = sc->sc_ah; boolean_t longcal = B_FALSE; boolean_t shortcal = B_FALSE; boolean_t aniflag = B_FALSE; unsigned int timestamp = drv_hztousec(ddi_get_lbolt())/1000; uint32_t cal_interval; /* * don't calibrate when we're scanning. * we are most likely not on our home channel. */ if (ic->ic_state != IEEE80211_S_RUN) goto settimer; /* Long calibration runs independently of short calibration. */ if ((timestamp - sc->sc_ani.sc_longcal_timer) >= ATH_LONG_CALINTERVAL) { longcal = B_TRUE; ARN_DBG((ARN_DBG_CALIBRATE, "arn: " "%s: longcal @%lu\n", __func__, drv_hztousec)); sc->sc_ani.sc_longcal_timer = timestamp; } /* Short calibration applies only while sc_caldone is FALSE */ if (!sc->sc_ani.sc_caldone) { if ((timestamp - sc->sc_ani.sc_shortcal_timer) >= ATH_SHORT_CALINTERVAL) { shortcal = B_TRUE; ARN_DBG((ARN_DBG_CALIBRATE, "arn: " "%s: shortcal @%lu\n", __func__, drv_hztousec)); sc->sc_ani.sc_shortcal_timer = timestamp; sc->sc_ani.sc_resetcal_timer = timestamp; } } else { if ((timestamp - sc->sc_ani.sc_resetcal_timer) >= ATH_RESTART_CALINTERVAL) { ath9k_hw_reset_calvalid(ah, ah->ah_curchan, &sc->sc_ani.sc_caldone); if (sc->sc_ani.sc_caldone) sc->sc_ani.sc_resetcal_timer = timestamp; } } /* Verify whether we must check ANI */ if ((timestamp - sc->sc_ani.sc_checkani_timer) >= ATH_ANI_POLLINTERVAL) { aniflag = B_TRUE; sc->sc_ani.sc_checkani_timer = timestamp; } /* Skip all processing if there's nothing to do. */ if (longcal || shortcal || aniflag) { /* Call ANI routine if necessary */ if (aniflag) ath9k_hw_ani_monitor(ah, &sc->sc_halstats, ah->ah_curchan); /* Perform calibration if necessary */ if (longcal || shortcal) { boolean_t iscaldone = B_FALSE; if (ath9k_hw_calibrate(ah, ah->ah_curchan, sc->sc_rx_chainmask, longcal, &iscaldone)) { if (longcal) sc->sc_ani.sc_noise_floor = ath9k_hw_getchan_noise(ah, ah->ah_curchan); ARN_DBG((ARN_DBG_CALIBRATE, "arn: " "%s: calibrate chan %u/%x nf: %d\n", __func__, ah->ah_curchan->channel, ah->ah_curchan->channelFlags, sc->sc_ani.sc_noise_floor)); } else { ARN_DBG((ARN_DBG_CALIBRATE, "arn: " "%s: calibrate chan %u/%x failed\n", __func__, ah->ah_curchan->channel, ah->ah_curchan->channelFlags)); } sc->sc_ani.sc_caldone = iscaldone; } } settimer: /* * Set timer interval based on previous results. * The interval must be the shortest necessary to satisfy ANI, * short calibration and long calibration. */ cal_interval = ATH_LONG_CALINTERVAL; if (sc->sc_ah->ah_config.enable_ani) cal_interval = min(cal_interval, (uint32_t)ATH_ANI_POLLINTERVAL); if (!sc->sc_ani.sc_caldone) cal_interval = min(cal_interval, (uint32_t)ATH_SHORT_CALINTERVAL); sc->sc_scan_timer = 0; sc->sc_scan_timer = timeout(arn_ani_calibrate, (void *)sc, drv_usectohz(cal_interval * 1000)); } static void arn_stop_caltimer(struct arn_softc *sc) { timeout_id_t tmp_id = 0; while ((sc->sc_cal_timer != 0) && (tmp_id != sc->sc_cal_timer)) { tmp_id = sc->sc_cal_timer; (void) untimeout(tmp_id); } sc->sc_cal_timer = 0; } static uint_t arn_isr(caddr_t arg) { /* LINTED E_BAD_PTR_CAST_ALIGN */ struct arn_softc *sc = (struct arn_softc *)arg; struct ath_hal *ah = sc->sc_ah; enum ath9k_int status; ieee80211com_t *ic = (ieee80211com_t *)sc; ARN_LOCK(sc); if (sc->sc_flags & SC_OP_INVALID) { /* * The hardware is not ready/present, don't * touch anything. Note this can happen early * on if the IRQ is shared. */ ARN_UNLOCK(sc); return (DDI_INTR_UNCLAIMED); } if (!ath9k_hw_intrpend(ah)) { /* shared irq, not for us */ ARN_UNLOCK(sc); return (DDI_INTR_UNCLAIMED); } /* * Figure out the reason(s) for the interrupt. Note * that the hal returns a pseudo-ISR that may include * bits we haven't explicitly enabled so we mask the * value to insure we only process bits we requested. */ (void) ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ status &= sc->sc_imask; /* discard unasked-for bits */ /* * If there are no status bits set, then this interrupt was not * for me (should have been caught above). */ if (!status) { ARN_UNLOCK(sc); return (DDI_INTR_UNCLAIMED); } sc->sc_intrstatus = status; if (status & ATH9K_INT_FATAL) { /* need a chip reset */ ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_FATAL\n")); goto reset; } else if (status & ATH9K_INT_RXORN) { /* need a chip reset */ ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_RXORN\n")); goto reset; } else { if (status & ATH9K_INT_RXEOL) { /* * NB: the hardware should re-read the link when * RXE bit is written, but it doesn't work * at least on older hardware revs. */ ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_RXEOL\n")); sc->sc_rxlink = NULL; } if (status & ATH9K_INT_TXURN) { /* bump tx trigger level */ ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_TXURN\n")); (void) ath9k_hw_updatetxtriglevel(ah, B_TRUE); } /* XXX: optimize this */ if (status & ATH9K_INT_RX) { ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_RX\n")); sc->sc_rx_pend = 1; ddi_trigger_softintr(sc->sc_softint_id); } if (status & ATH9K_INT_TX) { ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_TX\n")); if (ddi_taskq_dispatch(sc->sc_tq, arn_tx_int_proc, sc, DDI_NOSLEEP) != DDI_SUCCESS) { arn_problem("arn: arn_isr(): " "No memory for tx taskq\n"); } } #ifdef ARN_ATH9K_INT_MIB if (status & ATH9K_INT_MIB) { /* * Disable interrupts until we service the MIB * interrupt; otherwise it will continue to * fire. */ (void) ath9k_hw_set_interrupts(ah, 0); /* * Let the hal handle the event. We assume * it will clear whatever condition caused * the interrupt. */ ath9k_hw_procmibevent(ah, &sc->sc_halstats); (void) ath9k_hw_set_interrupts(ah, sc->sc_imask); ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_MIB\n")); } #endif #ifdef ARN_ATH9K_INT_TIM_TIMER if (status & ATH9K_INT_TIM_TIMER) { ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_TIM_TIMER\n")); if (!(ah->ah_caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { /* * Clear RxAbort bit so that we can * receive frames */ ath9k_hw_setrxabort(ah, 0); goto reset; } } #endif if (status & ATH9K_INT_BMISS) { ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_BMISS\n")); #ifdef ARN_HW_BEACON_MISS_HANDLE ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "handle beacon mmiss by H/W mechanism\n")); if (ddi_taskq_dispatch(sc->sc_tq, arn_bmiss_proc, sc, DDI_NOSLEEP) != DDI_SUCCESS) { arn_problem("arn: arn_isr(): " "No memory available for bmiss taskq\n"); } #else ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "handle beacon mmiss by S/W mechanism\n")); #endif /* ARN_HW_BEACON_MISS_HANDLE */ } ARN_UNLOCK(sc); #ifdef ARN_ATH9K_INT_CST /* carrier sense timeout */ if (status & ATH9K_INT_CST) { ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_CST\n")); return (DDI_INTR_CLAIMED); } #endif if (status & ATH9K_INT_SWBA) { ARN_DBG((ARN_DBG_INTERRUPT, "arn: arn_isr(): " "ATH9K_INT_SWBA\n")); /* This will occur only in Host-AP or Ad-Hoc mode */ return (DDI_INTR_CLAIMED); } } return (DDI_INTR_CLAIMED); reset: ARN_DBG((ARN_DBG_INTERRUPT, "Rset for fatal err\n")); (void) arn_reset(ic); ARN_UNLOCK(sc); return (DDI_INTR_CLAIMED); } static int arn_get_channel(struct arn_softc *sc, struct ieee80211_channel *chan) { int i; for (i = 0; i < sc->sc_ah->ah_nchan; i++) { if (sc->sc_ah->ah_channels[i].channel == chan->ich_freq) return (i); } return (-1); } int arn_reset(ieee80211com_t *ic) { struct arn_softc *sc = (struct arn_softc *)ic; struct ath_hal *ah = sc->sc_ah; int status; int error = 0; (void) ath9k_hw_set_interrupts(ah, 0); arn_draintxq(sc, 0); (void) arn_stoprecv(sc); if (!ath9k_hw_reset(ah, sc->sc_ah->ah_curchan, sc->tx_chan_width, sc->sc_tx_chainmask, sc->sc_rx_chainmask, sc->sc_ht_extprotspacing, B_FALSE, &status)) { ARN_DBG((ARN_DBG_RESET, "arn: arn_reset(): " "unable to reset hardware; hal status %u\n", status)); error = EIO; } if (arn_startrecv(sc) != 0) ARN_DBG((ARN_DBG_RESET, "arn: arn_reset(): " "unable to start recv logic\n")); /* * We may be doing a reset in response to a request * that changes the channel so update any state that * might change as a result. */ arn_setcurmode(sc, arn_chan2mode(sc->sc_ah->ah_curchan)); arn_update_txpow(sc); if (sc->sc_flags & SC_OP_BEACONS) arn_beacon_config(sc); /* restart beacons */ (void) ath9k_hw_set_interrupts(ah, sc->sc_imask); return (error); } int arn_get_hal_qnum(uint16_t queue, struct arn_softc *sc) { int qnum; switch (queue) { case WME_AC_VO: qnum = sc->sc_haltype2q[ATH9K_WME_AC_VO]; break; case WME_AC_VI: qnum = sc->sc_haltype2q[ATH9K_WME_AC_VI]; break; case WME_AC_BE: qnum = sc->sc_haltype2q[ATH9K_WME_AC_BE]; break; case WME_AC_BK: qnum = sc->sc_haltype2q[ATH9K_WME_AC_BK]; break; default: qnum = sc->sc_haltype2q[ATH9K_WME_AC_BE]; break; } return (qnum); } static struct { uint32_t version; const char *name; } ath_mac_bb_names[] = { { AR_SREV_VERSION_5416_PCI, "5416" }, { AR_SREV_VERSION_5416_PCIE, "5418" }, { AR_SREV_VERSION_9100, "9100" }, { AR_SREV_VERSION_9160, "9160" }, { AR_SREV_VERSION_9280, "9280" }, { AR_SREV_VERSION_9285, "9285" } }; static struct { uint16_t version; const char *name; } ath_rf_names[] = { { 0, "5133" }, { AR_RAD5133_SREV_MAJOR, "5133" }, { AR_RAD5122_SREV_MAJOR, "5122" }, { AR_RAD2133_SREV_MAJOR, "2133" }, { AR_RAD2122_SREV_MAJOR, "2122" } }; /* * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. */ static const char * arn_mac_bb_name(uint32_t mac_bb_version) { int i; for (i = 0; i < ARRAY_SIZE(ath_mac_bb_names); i++) { if (ath_mac_bb_names[i].version == mac_bb_version) { return (ath_mac_bb_names[i].name); } } return ("????"); } /* * Return the RF name. "????" is returned if the RF is unknown. */ static const char * arn_rf_name(uint16_t rf_version) { int i; for (i = 0; i < ARRAY_SIZE(ath_rf_names); i++) { if (ath_rf_names[i].version == rf_version) { return (ath_rf_names[i].name); } } return ("????"); } static void arn_next_scan(void *arg) { ieee80211com_t *ic = arg; struct arn_softc *sc = (struct arn_softc *)ic; sc->sc_scan_timer = 0; if (ic->ic_state == IEEE80211_S_SCAN) { sc->sc_scan_timer = timeout(arn_next_scan, (void *)sc, drv_usectohz(arn_dwelltime * 1000)); ieee80211_next_scan(ic); } } static void arn_stop_scantimer(struct arn_softc *sc) { timeout_id_t tmp_id = 0; while ((sc->sc_scan_timer != 0) && (tmp_id != sc->sc_scan_timer)) { tmp_id = sc->sc_scan_timer; (void) untimeout(tmp_id); } sc->sc_scan_timer = 0; } static int32_t arn_newstate(ieee80211com_t *ic, enum ieee80211_state nstate, int arg) { struct arn_softc *sc = (struct arn_softc *)ic; struct ath_hal *ah = sc->sc_ah; struct ieee80211_node *in; int32_t i, error; uint8_t *bssid; uint32_t rfilt; enum ieee80211_state ostate; struct ath9k_channel *channel; int pos; /* Should set up & init LED here */ if (sc->sc_flags & SC_OP_INVALID) return (0); ostate = ic->ic_state; ARN_DBG((ARN_DBG_INIT, "arn: arn_newstate(): " "%x -> %x!\n", ostate, nstate)); ARN_LOCK(sc); if (nstate != IEEE80211_S_SCAN) arn_stop_scantimer(sc); if (nstate != IEEE80211_S_RUN) arn_stop_caltimer(sc); /* Should set LED here */ if (nstate == IEEE80211_S_INIT) { sc->sc_imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); /* * Disable interrupts. */ (void) ath9k_hw_set_interrupts (ah, sc->sc_imask &~ ATH9K_INT_GLOBAL); #ifdef ARN_IBSS if (ic->ic_opmode == IEEE80211_M_IBSS) { (void) ath9k_hw_stoptxdma(ah, sc->sc_beaconq); arn_beacon_return(sc); } #endif ARN_UNLOCK(sc); ieee80211_stop_watchdog(ic); goto done; } in = ic->ic_bss; pos = arn_get_channel(sc, ic->ic_curchan); if (pos == -1) { ARN_DBG((ARN_DBG_FATAL, "arn: " "%s: Invalid channel\n", __func__)); error = EINVAL; ARN_UNLOCK(sc); goto bad; } if (in->in_htcap & IEEE80211_HTCAP_CHWIDTH40) { arn_update_chainmask(sc); sc->tx_chan_width = ATH9K_HT_MACMODE_2040; } else sc->tx_chan_width = ATH9K_HT_MACMODE_20; sc->sc_ah->ah_channels[pos].chanmode = arn_chan2flags(ic, ic->ic_curchan); channel = &sc->sc_ah->ah_channels[pos]; if (channel == NULL) { arn_problem("arn_newstate(): channel == NULL"); ARN_UNLOCK(sc); goto bad; } error = arn_set_channel(sc, channel); if (error != 0) { if (nstate != IEEE80211_S_SCAN) { ARN_UNLOCK(sc); ieee80211_reset_chan(ic); goto bad; } } /* * Get the receive filter according to the * operating mode and state */ rfilt = arn_calcrxfilter(sc); if (nstate == IEEE80211_S_SCAN) bssid = ic->ic_macaddr; else bssid = in->in_bssid; ath9k_hw_setrxfilter(ah, rfilt); if (nstate == IEEE80211_S_RUN && ic->ic_opmode != IEEE80211_M_IBSS) ath9k_hw_write_associd(ah, bssid, in->in_associd); else ath9k_hw_write_associd(ah, bssid, 0); /* Check for WLAN_CAPABILITY_PRIVACY ? */ if (ic->ic_flags & IEEE80211_F_PRIVACY) { for (i = 0; i < IEEE80211_WEP_NKID; i++) { if (ath9k_hw_keyisvalid(ah, (uint16_t)i)) (void) ath9k_hw_keysetmac(ah, (uint16_t)i, bssid); } } if (nstate == IEEE80211_S_RUN) { switch (ic->ic_opmode) { #ifdef ARN_IBSS case IEEE80211_M_IBSS: /* * Allocate and setup the beacon frame. * Stop any previous beacon DMA. */ (void) ath9k_hw_stoptxdma(ah, sc->sc_beaconq); arn_beacon_return(sc); error = arn_beacon_alloc(sc, in); if (error != 0) { ARN_UNLOCK(sc); goto bad; } /* * If joining an adhoc network defer beacon timer * configuration to the next beacon frame so we * have a current TSF to use. Otherwise we're * starting an ibss/bss so there's no need to delay. */ if (ic->ic_opmode == IEEE80211_M_IBSS && ic->ic_bss->in_tstamp.tsf != 0) { sc->sc_bsync = 1; } else { arn_beacon_config(sc); } break; #endif /* ARN_IBSS */ case IEEE80211_M_STA: if (ostate != IEEE80211_S_RUN) { /* * Defer beacon timer configuration to the next * beacon frame so we have a current TSF to use. * Any TSF collected when scanning is likely old */ #ifdef ARN_IBSS sc->sc_bsync = 1; #else /* Configure the beacon and sleep timers. */ arn_beacon_config(sc); /* Reset rssi stats */ sc->sc_halstats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER; sc->sc_halstats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER; sc->sc_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER; sc->sc_halstats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER; /* end */ #endif /* ARN_IBSS */ } break; default: break; } } else { sc->sc_imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); (void) ath9k_hw_set_interrupts(ah, sc->sc_imask); } /* * Reset the rate control state. */ arn_rate_ctl_reset(sc, nstate); ARN_UNLOCK(sc); done: /* * Invoke the parent method to complete the work. */ error = sc->sc_newstate(ic, nstate, arg); /* * Finally, start any timers. */ if (nstate == IEEE80211_S_RUN) { ieee80211_start_watchdog(ic, 1); ASSERT(sc->sc_cal_timer == 0); sc->sc_cal_timer = timeout(arn_ani_calibrate, (void *)sc, drv_usectohz(100 * 1000)); } else if ((nstate == IEEE80211_S_SCAN) && (ostate != nstate)) { /* start ap/neighbor scan timer */ /* ASSERT(sc->sc_scan_timer == 0); */ if (sc->sc_scan_timer != 0) { (void) untimeout(sc->sc_scan_timer); sc->sc_scan_timer = 0; } sc->sc_scan_timer = timeout(arn_next_scan, (void *)sc, drv_usectohz(arn_dwelltime * 1000)); } bad: return (error); } static void arn_watchdog(void *arg) { struct arn_softc *sc = arg; ieee80211com_t *ic = &sc->sc_isc; int ntimer = 0; ARN_LOCK(sc); ic->ic_watchdog_timer = 0; if (sc->sc_flags & SC_OP_INVALID) { ARN_UNLOCK(sc); return; } if (ic->ic_state == IEEE80211_S_RUN) { /* * Start the background rate control thread if we * are not configured to use a fixed xmit rate. */ #ifdef ARN_LEGACY_RC if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) { sc->sc_stats.ast_rate_calls ++; if (ic->ic_opmode == IEEE80211_M_STA) arn_rate_ctl(ic, ic->ic_bss); else ieee80211_iterate_nodes(&ic->ic_sta, arn_rate_ctl, sc); } #endif /* ARN_LEGACY_RC */ #ifdef ARN_HW_BEACON_MISS_HANDLE /* nothing to do here */ #else /* currently set 10 seconds as beacon miss threshold */ if (ic->ic_beaconmiss++ > 100) { ARN_DBG((ARN_DBG_BEACON, "arn_watchdog():" "Beacon missed for 10 seconds, run" "ieee80211_new_state(ic, IEEE80211_S_INIT, -1)\n")); ARN_UNLOCK(sc); (void) ieee80211_new_state(ic, IEEE80211_S_INIT, -1); return; } #endif /* ARN_HW_BEACON_MISS_HANDLE */ ntimer = 1; } ARN_UNLOCK(sc); ieee80211_watchdog(ic); if (ntimer != 0) ieee80211_start_watchdog(ic, ntimer); } /* ARGSUSED */ static struct ieee80211_node * arn_node_alloc(ieee80211com_t *ic) { struct ath_node *an; #ifdef ARN_TX_AGGREGATION struct arn_softc *sc = (struct arn_softc *)ic; #endif an = kmem_zalloc(sizeof (struct ath_node), KM_SLEEP); /* legacy rate control */ #ifdef ARN_LEGACY_RC arn_rate_update(sc, &an->an_node, 0); #endif #ifdef ARN_TX_AGGREGATION if (sc->sc_flags & SC_OP_TXAGGR) { arn_tx_node_init(sc, an); } #endif /* ARN_TX_AGGREGATION */ an->last_rssi = ATH_RSSI_DUMMY_MARKER; return ((an != NULL) ? &an->an_node : NULL); } static void arn_node_free(struct ieee80211_node *in) { ieee80211com_t *ic = in->in_ic; struct arn_softc *sc = (struct arn_softc *)ic; struct ath_buf *bf; struct ath_txq *txq; int32_t i; #ifdef ARN_TX_AGGREGATION if (sc->sc_flags & SC_OP_TXAGGR) arn_tx_node_cleanup(sc, in); #endif /* TX_AGGREGATION */ for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { if (ARN_TXQ_SETUP(sc, i)) { txq = &sc->sc_txq[i]; mutex_enter(&txq->axq_lock); bf = list_head(&txq->axq_list); while (bf != NULL) { if (bf->bf_in == in) { bf->bf_in = NULL; } bf = list_next(&txq->axq_list, bf); } mutex_exit(&txq->axq_lock); } } ic->ic_node_cleanup(in); if (in->in_wpa_ie != NULL) ieee80211_free(in->in_wpa_ie); if (in->in_wme_ie != NULL) ieee80211_free(in->in_wme_ie); if (in->in_htcap_ie != NULL) ieee80211_free(in->in_htcap_ie); kmem_free(in, sizeof (struct ath_node)); } /* * Allocate tx/rx key slots for TKIP. We allocate one slot for * each key. MIC is right after the decrypt/encrypt key. */ static uint16_t arn_key_alloc_pair(struct arn_softc *sc, ieee80211_keyix *txkeyix, ieee80211_keyix *rxkeyix) { uint16_t i, keyix; ASSERT(!sc->sc_splitmic); for (i = 0; i < ARRAY_SIZE(sc->sc_keymap)/4; i++) { uint8_t b = sc->sc_keymap[i]; if (b == 0xff) continue; for (keyix = i * NBBY; keyix < (i + 1) * NBBY; keyix++, b >>= 1) { if ((b & 1) || is_set(keyix+64, sc->sc_keymap)) { /* full pair unavailable */ continue; } set_bit(keyix, sc->sc_keymap); set_bit(keyix+64, sc->sc_keymap); ARN_DBG((ARN_DBG_KEYCACHE, "arn_key_alloc_pair(): key pair %u,%u\n", keyix, keyix+64)); *txkeyix = *rxkeyix = keyix; return (1); } } ARN_DBG((ARN_DBG_KEYCACHE, "arn_key_alloc_pair():" " out of pair space\n")); return (0); } /* * Allocate tx/rx key slots for TKIP. We allocate two slots for * each key, one for decrypt/encrypt and the other for the MIC. */ static int arn_key_alloc_2pair(struct arn_softc *sc, ieee80211_keyix *txkeyix, ieee80211_keyix *rxkeyix) { uint16_t i, keyix; ASSERT(sc->sc_splitmic); for (i = 0; i < ARRAY_SIZE(sc->sc_keymap)/4; i++) { uint8_t b = sc->sc_keymap[i]; if (b != 0xff) { /* * One or more slots in this byte are free. */ keyix = i*NBBY; while (b & 1) { again: keyix++; b >>= 1; } /* XXX IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV */ if (is_set(keyix+32, sc->sc_keymap) || is_set(keyix+64, sc->sc_keymap) || is_set(keyix+32+64, sc->sc_keymap)) { /* full pair unavailable */ if (keyix == (i+1)*NBBY) { /* no slots were appropriate, advance */ continue; } goto again; } set_bit(keyix, sc->sc_keymap); set_bit(keyix+64, sc->sc_keymap); set_bit(keyix+32, sc->sc_keymap); set_bit(keyix+32+64, sc->sc_keymap); ARN_DBG((ARN_DBG_KEYCACHE, "arn_key_alloc_2pair(): key pair %u,%u %u,%u\n", keyix, keyix+64, keyix+32, keyix+32+64)); *txkeyix = *rxkeyix = keyix; return (1); } } ARN_DBG((ARN_DBG_KEYCACHE, "arn_key_alloc_2pair(): " " out of pair space\n")); return (0); } /* * Allocate a single key cache slot. */ static int arn_key_alloc_single(struct arn_softc *sc, ieee80211_keyix *txkeyix, ieee80211_keyix *rxkeyix) { uint16_t i, keyix; /* try i,i+32,i+64,i+32+64 to minimize key pair conflicts */ for (i = 0; i < ARRAY_SIZE(sc->sc_keymap); i++) { uint8_t b = sc->sc_keymap[i]; if (b != 0xff) { /* * One or more slots are free. */ keyix = i*NBBY; while (b & 1) keyix++, b >>= 1; set_bit(keyix, sc->sc_keymap); ARN_DBG((ARN_DBG_KEYCACHE, "arn_key_alloc_single(): " "key %u\n", keyix)); *txkeyix = *rxkeyix = keyix; return (1); } } return (0); } /* * Allocate one or more key cache slots for a unicast key. The * key itself is needed only to identify the cipher. For hardware * TKIP with split cipher+MIC keys we allocate two key cache slot * pairs so that we can setup separate TX and RX MIC keys. Note * that the MIC key for a TKIP key at slot i is assumed by the * hardware to be at slot i+64. This limits TKIP keys to the first * 64 entries. */ /* ARGSUSED */ int arn_key_alloc(ieee80211com_t *ic, const struct ieee80211_key *k, ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) { struct arn_softc *sc = (struct arn_softc *)ic; /* * We allocate two pair for TKIP when using the h/w to do * the MIC. For everything else, including software crypto, * we allocate a single entry. Note that s/w crypto requires * a pass-through slot on the 5211 and 5212. The 5210 does * not support pass-through cache entries and we map all * those requests to slot 0. */ if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { return (arn_key_alloc_single(sc, keyix, rxkeyix)); } else if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP && (k->wk_flags & IEEE80211_KEY_SWMIC) == 0) { if (sc->sc_splitmic) return (arn_key_alloc_2pair(sc, keyix, rxkeyix)); else return (arn_key_alloc_pair(sc, keyix, rxkeyix)); } else { return (arn_key_alloc_single(sc, keyix, rxkeyix)); } } /* * Delete an entry in the key cache allocated by ath_key_alloc. */ int arn_key_delete(ieee80211com_t *ic, const struct ieee80211_key *k) { struct arn_softc *sc = (struct arn_softc *)ic; struct ath_hal *ah = sc->sc_ah; const struct ieee80211_cipher *cip = k->wk_cipher; ieee80211_keyix keyix = k->wk_keyix; ARN_DBG((ARN_DBG_KEYCACHE, "arn_key_delete():" " delete key %u ic_cipher=0x%x\n", keyix, cip->ic_cipher)); (void) ath9k_hw_keyreset(ah, keyix); /* * Handle split tx/rx keying required for TKIP with h/w MIC. */ if (cip->ic_cipher == IEEE80211_CIPHER_TKIP && (k->wk_flags & IEEE80211_KEY_SWMIC) == 0 && sc->sc_splitmic) (void) ath9k_hw_keyreset(ah, keyix+32); /* RX key */ if (keyix >= IEEE80211_WEP_NKID) { /* * Don't touch keymap entries for global keys so * they are never considered for dynamic allocation. */ clr_bit(keyix, sc->sc_keymap); if (cip->ic_cipher == IEEE80211_CIPHER_TKIP && (k->wk_flags & IEEE80211_KEY_SWMIC) == 0) { /* * If splitmic is true +64 is TX key MIC, * else +64 is RX key + RX key MIC. */ clr_bit(keyix+64, sc->sc_keymap); if (sc->sc_splitmic) { /* Rx key */ clr_bit(keyix+32, sc->sc_keymap); /* RX key MIC */ clr_bit(keyix+32+64, sc->sc_keymap); } } } return (1); } /* * Set a TKIP key into the hardware. This handles the * potential distribution of key state to multiple key * cache slots for TKIP. */ static int arn_keyset_tkip(struct arn_softc *sc, const struct ieee80211_key *k, struct ath9k_keyval *hk, const uint8_t mac[IEEE80211_ADDR_LEN]) { uint8_t *key_rxmic = NULL; uint8_t *key_txmic = NULL; uint8_t *key = (uint8_t *)&(k->wk_key[0]); struct ath_hal *ah = sc->sc_ah; key_txmic = key + 16; key_rxmic = key + 24; if (mac == NULL) { /* Group key installation */ (void) memcpy(hk->kv_mic, key_rxmic, sizeof (hk->kv_mic)); return (ath9k_hw_set_keycache_entry(ah, k->wk_keyix, hk, mac, B_FALSE)); } if (!sc->sc_splitmic) { /* * data key goes at first index, * the hal handles the MIC keys at index+64. */ (void) memcpy(hk->kv_mic, key_rxmic, sizeof (hk->kv_mic)); (void) memcpy(hk->kv_txmic, key_txmic, sizeof (hk->kv_txmic)); return (ath9k_hw_set_keycache_entry(ah, k->wk_keyix, hk, mac, B_FALSE)); } /* * TX key goes at first index, RX key at +32. * The hal handles the MIC keys at index+64. */ (void) memcpy(hk->kv_mic, key_txmic, sizeof (hk->kv_mic)); if (!(ath9k_hw_set_keycache_entry(ah, k->wk_keyix, hk, NULL, B_FALSE))) { /* Txmic entry failed. No need to proceed further */ ARN_DBG((ARN_DBG_KEYCACHE, "%s Setting TX MIC Key Failed\n", __func__)); return (0); } (void) memcpy(hk->kv_mic, key_rxmic, sizeof (hk->kv_mic)); /* XXX delete tx key on failure? */ return (ath9k_hw_set_keycache_entry(ah, k->wk_keyix, hk, mac, B_FALSE)); } int arn_key_set(ieee80211com_t *ic, const struct ieee80211_key *k, const uint8_t mac[IEEE80211_ADDR_LEN]) { struct arn_softc *sc = (struct arn_softc *)ic; const struct ieee80211_cipher *cip = k->wk_cipher; struct ath9k_keyval hk; /* cipher table */ static const uint8_t ciphermap[] = { ATH9K_CIPHER_WEP, /* IEEE80211_CIPHER_WEP */ ATH9K_CIPHER_TKIP, /* IEEE80211_CIPHER_TKIP */ ATH9K_CIPHER_AES_OCB, /* IEEE80211_CIPHER_AES_OCB */ ATH9K_CIPHER_AES_CCM, /* IEEE80211_CIPHER_AES_CCM */ ATH9K_CIPHER_CKIP, /* IEEE80211_CIPHER_CKIP */ ATH9K_CIPHER_CLR, /* IEEE80211_CIPHER_NONE */ }; bzero(&hk, sizeof (hk)); /* * Software crypto uses a "clear key" so non-crypto * state kept in the key cache are maintainedd so that * rx frames have an entry to match. */ if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) == 0) { ASSERT(cip->ic_cipher < 6); hk.kv_type = ciphermap[cip->ic_cipher]; hk.kv_len = k->wk_keylen; bcopy(k->wk_key, hk.kv_val, k->wk_keylen); } else { hk.kv_type = ATH9K_CIPHER_CLR; } if (hk.kv_type == ATH9K_CIPHER_TKIP && (k->wk_flags & IEEE80211_KEY_SWMIC) == 0) { return (arn_keyset_tkip(sc, k, &hk, mac)); } else { return (ath9k_hw_set_keycache_entry(sc->sc_ah, k->wk_keyix, &hk, mac, B_FALSE)); } } /* * Enable/Disable short slot timing */ void arn_set_shortslot(ieee80211com_t *ic, int onoff) { struct ath_hal *ah = ((struct arn_softc *)ic)->sc_ah; if (onoff) (void) ath9k_hw_setslottime(ah, ATH9K_SLOT_TIME_9); else (void) ath9k_hw_setslottime(ah, ATH9K_SLOT_TIME_20); } static int arn_open(struct arn_softc *sc) { ieee80211com_t *ic = (ieee80211com_t *)sc; struct ieee80211_channel *curchan = ic->ic_curchan; struct ath9k_channel *init_channel; int error = 0, pos, status; ARN_LOCK_ASSERT(sc); pos = arn_get_channel(sc, curchan); if (pos == -1) { ARN_DBG((ARN_DBG_FATAL, "arn: " "%s: Invalid channel\n", __func__)); error = EINVAL; goto error; } sc->tx_chan_width = ATH9K_HT_MACMODE_20; if (sc->sc_curmode == ATH9K_MODE_11A) { sc->sc_ah->ah_channels[pos].chanmode = CHANNEL_A; } else { sc->sc_ah->ah_channels[pos].chanmode = CHANNEL_G; } init_channel = &sc->sc_ah->ah_channels[pos]; /* Reset SERDES registers */ ath9k_hw_configpcipowersave(sc->sc_ah, 0); /* * The basic interface to setting the hardware in a good * state is ``reset''. On return the hardware is known to * be powered up and with interrupts disabled. This must * be followed by initialization of the appropriate bits * and then setup of the interrupt mask. */ if (!ath9k_hw_reset(sc->sc_ah, init_channel, sc->tx_chan_width, sc->sc_tx_chainmask, sc->sc_rx_chainmask, sc->sc_ht_extprotspacing, B_FALSE, &status)) { ARN_DBG((ARN_DBG_FATAL, "arn: " "%s: unable to reset hardware; hal status %u " "(freq %u flags 0x%x)\n", __func__, status, init_channel->channel, init_channel->channelFlags)); error = EIO; goto error; } /* * This is needed only to setup initial state * but it's best done after a reset. */ arn_update_txpow(sc); /* * Setup the hardware after reset: * The receive engine is set going. * Frame transmit is handled entirely * in the frame output path; there's nothing to do * here except setup the interrupt mask. */ if (arn_startrecv(sc) != 0) { ARN_DBG((ARN_DBG_INIT, "arn: " "%s: unable to start recv logic\n", __func__)); error = EIO; goto error; } /* Setup our intr mask. */ sc->sc_imask = ATH9K_INT_RX | ATH9K_INT_TX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; #ifdef ARN_ATH9K_HW_CAP_GTT if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_GTT) sc->sc_imask |= ATH9K_INT_GTT; #endif #ifdef ARN_ATH9K_HW_CAP_GTT if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) sc->sc_imask |= ATH9K_INT_CST; #endif /* * Enable MIB interrupts when there are hardware phy counters. * Note we only do this (at the moment) for station mode. */ #ifdef ARN_ATH9K_INT_MIB if (ath9k_hw_phycounters(sc->sc_ah) && ((sc->sc_ah->ah_opmode == ATH9K_M_STA) || (sc->sc_ah->ah_opmode == ATH9K_M_IBSS))) sc->sc_imask |= ATH9K_INT_MIB; #endif /* * Some hardware processes the TIM IE and fires an * interrupt when the TIM bit is set. For hardware * that does, if not overridden by configuration, * enable the TIM interrupt when operating as station. */ #ifdef ARN_ATH9K_INT_TIM if ((sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_ENHANCEDPM) && (sc->sc_ah->ah_opmode == ATH9K_M_STA) && !sc->sc_config.swBeaconProcess) sc->sc_imask |= ATH9K_INT_TIM; #endif if (arn_chan2mode(init_channel) != sc->sc_curmode) arn_setcurmode(sc, arn_chan2mode(init_channel)); ARN_DBG((ARN_DBG_INIT, "arn: " "%s: current mode after arn_setcurmode is %d\n", __func__, sc->sc_curmode)); sc->sc_isrunning = 1; /* Disable BMISS interrupt when we're not associated */ sc->sc_imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); (void) ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_imask); return (0); error: return (error); } static void arn_close(struct arn_softc *sc) { ieee80211com_t *ic = (ieee80211com_t *)sc; struct ath_hal *ah = sc->sc_ah; ARN_LOCK_ASSERT(sc); if (!sc->sc_isrunning) return; /* * Shutdown the hardware and driver * Note that some of this work is not possible if the * hardware is gone (invalid). */ ARN_UNLOCK(sc); ieee80211_new_state(ic, IEEE80211_S_INIT, -1); ieee80211_stop_watchdog(ic); ARN_LOCK(sc); /* * make sure h/w will not generate any interrupt * before setting the invalid flag. */ (void) ath9k_hw_set_interrupts(ah, 0); if (!(sc->sc_flags & SC_OP_INVALID)) { arn_draintxq(sc, 0); (void) arn_stoprecv(sc); (void) ath9k_hw_phy_disable(ah); } else { sc->sc_rxlink = NULL; } sc->sc_isrunning = 0; } /* * MAC callback functions */ static int arn_m_stat(void *arg, uint_t stat, uint64_t *val) { struct arn_softc *sc = arg; ieee80211com_t *ic = (ieee80211com_t *)sc; struct ieee80211_node *in; struct ieee80211_rateset *rs; ARN_LOCK(sc); switch (stat) { case MAC_STAT_IFSPEED: in = ic->ic_bss; rs = &in->in_rates; *val = (rs->ir_rates[in->in_txrate] & IEEE80211_RATE_VAL) / 2 * 1000000ull; break; case MAC_STAT_NOXMTBUF: *val = sc->sc_stats.ast_tx_nobuf + sc->sc_stats.ast_tx_nobufmgt; break; case MAC_STAT_IERRORS: *val = sc->sc_stats.ast_rx_tooshort; break; case MAC_STAT_RBYTES: *val = ic->ic_stats.is_rx_bytes; break; case MAC_STAT_IPACKETS: *val = ic->ic_stats.is_rx_frags; break; case MAC_STAT_OBYTES: *val = ic->ic_stats.is_tx_bytes; break; case MAC_STAT_OPACKETS: *val = ic->ic_stats.is_tx_frags; break; case MAC_STAT_OERRORS: case WIFI_STAT_TX_FAILED: *val = sc->sc_stats.ast_tx_fifoerr + sc->sc_stats.ast_tx_xretries + sc->sc_stats.ast_tx_discard; break; case WIFI_STAT_TX_RETRANS: *val = sc->sc_stats.ast_tx_xretries; break; case WIFI_STAT_FCS_ERRORS: *val = sc->sc_stats.ast_rx_crcerr; break; case WIFI_STAT_WEP_ERRORS: *val = sc->sc_stats.ast_rx_badcrypt; break; case WIFI_STAT_TX_FRAGS: case WIFI_STAT_MCAST_TX: case WIFI_STAT_RTS_SUCCESS: case WIFI_STAT_RTS_FAILURE: case WIFI_STAT_ACK_FAILURE: case WIFI_STAT_RX_FRAGS: case WIFI_STAT_MCAST_RX: case WIFI_STAT_RX_DUPS: ARN_UNLOCK(sc); return (ieee80211_stat(ic, stat, val)); default: ARN_UNLOCK(sc); return (ENOTSUP); } ARN_UNLOCK(sc); return (0); } int arn_m_start(void *arg) { struct arn_softc *sc = arg; int err = 0; ARN_LOCK(sc); /* * Stop anything previously setup. This is safe * whether this is the first time through or not. */ arn_close(sc); if ((err = arn_open(sc)) != 0) { ARN_UNLOCK(sc); return (err); } /* H/W is reday now */ sc->sc_flags &= ~SC_OP_INVALID; ARN_UNLOCK(sc); return (0); } static void arn_m_stop(void *arg) { struct arn_softc *sc = arg; ARN_LOCK(sc); arn_close(sc); /* disable HAL and put h/w to sleep */ (void) ath9k_hw_disable(sc->sc_ah); ath9k_hw_configpcipowersave(sc->sc_ah, 1); /* XXX: hardware will not be ready in suspend state */ sc->sc_flags |= SC_OP_INVALID; ARN_UNLOCK(sc); } static int arn_m_promisc(void *arg, boolean_t on) { struct arn_softc *sc = arg; struct ath_hal *ah = sc->sc_ah; uint32_t rfilt; ARN_LOCK(sc); rfilt = ath9k_hw_getrxfilter(ah); if (on) rfilt |= ATH9K_RX_FILTER_PROM; else rfilt &= ~ATH9K_RX_FILTER_PROM; sc->sc_promisc = on; ath9k_hw_setrxfilter(ah, rfilt); ARN_UNLOCK(sc); return (0); } static int arn_m_multicst(void *arg, boolean_t add, const uint8_t *mca) { struct arn_softc *sc = arg; struct ath_hal *ah = sc->sc_ah; uint32_t val, index, bit; uint8_t pos; uint32_t *mfilt = sc->sc_mcast_hash; ARN_LOCK(sc); /* calculate XOR of eight 6bit values */ val = ARN_LE_READ_32(mca + 0); pos = (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val; val = ARN_LE_READ_32(mca + 3); pos ^= (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val; pos &= 0x3f; index = pos / 32; bit = 1 << (pos % 32); if (add) { /* enable multicast */ sc->sc_mcast_refs[pos]++; mfilt[index] |= bit; } else { /* disable multicast */ if (--sc->sc_mcast_refs[pos] == 0) mfilt[index] &= ~bit; } ath9k_hw_setmcastfilter(ah, mfilt[0], mfilt[1]); ARN_UNLOCK(sc); return (0); } static int arn_m_unicst(void *arg, const uint8_t *macaddr) { struct arn_softc *sc = arg; struct ath_hal *ah = sc->sc_ah; ieee80211com_t *ic = (ieee80211com_t *)sc; ARN_DBG((ARN_DBG_XMIT, "ath: ath_gld_saddr(): " "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", macaddr[0], macaddr[1], macaddr[2], macaddr[3], macaddr[4], macaddr[5])); ARN_LOCK(sc); IEEE80211_ADDR_COPY(sc->sc_isc.ic_macaddr, macaddr); (void) ath9k_hw_setmac(ah, sc->sc_isc.ic_macaddr); (void) arn_reset(ic); ARN_UNLOCK(sc); return (0); } static mblk_t * arn_m_tx(void *arg, mblk_t *mp) { struct arn_softc *sc = arg; int error = 0; mblk_t *next; ieee80211com_t *ic = (ieee80211com_t *)sc; /* * No data frames go out unless we're associated; this * should not happen as the 802.11 layer does not enable * the xmit queue until we enter the RUN state. */ if (ic->ic_state != IEEE80211_S_RUN) { ARN_DBG((ARN_DBG_XMIT, "arn: arn_m_tx(): " "discard, state %u\n", ic->ic_state)); sc->sc_stats.ast_tx_discard++; freemsgchain(mp); return (NULL); } while (mp != NULL) { next = mp->b_next; mp->b_next = NULL; error = arn_tx(ic, mp, IEEE80211_FC0_TYPE_DATA); if (error != 0) { mp->b_next = next; if (error == ENOMEM) { break; } else { freemsgchain(mp); return (NULL); } } mp = next; } return (mp); } static void arn_m_ioctl(void *arg, queue_t *wq, mblk_t *mp) { struct arn_softc *sc = arg; int32_t err; err = ieee80211_ioctl(&sc->sc_isc, wq, mp); ARN_LOCK(sc); if (err == ENETRESET) { if (!(sc->sc_flags & SC_OP_INVALID)) { ARN_UNLOCK(sc); (void) arn_m_start(sc); (void) ieee80211_new_state(&sc->sc_isc, IEEE80211_S_SCAN, -1); ARN_LOCK(sc); } } ARN_UNLOCK(sc); } static int arn_m_setprop(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_num, uint_t wldp_length, const void *wldp_buf) { struct arn_softc *sc = arg; int err; err = ieee80211_setprop(&sc->sc_isc, pr_name, wldp_pr_num, wldp_length, wldp_buf); ARN_LOCK(sc); if (err == ENETRESET) { if (!(sc->sc_flags & SC_OP_INVALID)) { ARN_UNLOCK(sc); (void) arn_m_start(sc); (void) ieee80211_new_state(&sc->sc_isc, IEEE80211_S_SCAN, -1); ARN_LOCK(sc); } err = 0; } ARN_UNLOCK(sc); return (err); } /* ARGSUSED */ static int arn_m_getprop(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_num, uint_t wldp_length, void *wldp_buf) { struct arn_softc *sc = arg; int err = 0; err = ieee80211_getprop(&sc->sc_isc, pr_name, wldp_pr_num, wldp_length, wldp_buf); return (err); } static void arn_m_propinfo(void *arg, const char *pr_name, mac_prop_id_t wldp_pr_num, mac_prop_info_handle_t prh) { struct arn_softc *sc = arg; ieee80211_propinfo(&sc->sc_isc, pr_name, wldp_pr_num, prh); } /* return bus cachesize in 4B word units */ static void arn_pci_config_cachesize(struct arn_softc *sc) { uint8_t csz; /* * Cache line size is used to size and align various * structures used to communicate with the hardware. */ csz = pci_config_get8(sc->sc_cfg_handle, PCI_CONF_CACHE_LINESZ); if (csz == 0) { /* * We must have this setup properly for rx buffer * DMA to work so force a reasonable value here if it * comes up zero. */ csz = ATH_DEF_CACHE_BYTES / sizeof (uint32_t); pci_config_put8(sc->sc_cfg_handle, PCI_CONF_CACHE_LINESZ, csz); } sc->sc_cachelsz = csz << 2; } static int arn_pci_setup(struct arn_softc *sc) { uint16_t command; /* * Enable memory mapping and bus mastering */ ASSERT(sc != NULL); command = pci_config_get16(sc->sc_cfg_handle, PCI_CONF_COMM); command |= PCI_COMM_MAE | PCI_COMM_ME; pci_config_put16(sc->sc_cfg_handle, PCI_CONF_COMM, command); command = pci_config_get16(sc->sc_cfg_handle, PCI_CONF_COMM); if ((command & PCI_COMM_MAE) == 0) { arn_problem("arn: arn_pci_setup(): " "failed to enable memory mapping\n"); return (EIO); } if ((command & PCI_COMM_ME) == 0) { arn_problem("arn: arn_pci_setup(): " "failed to enable bus mastering\n"); return (EIO); } ARN_DBG((ARN_DBG_INIT, "arn: arn_pci_setup(): " "set command reg to 0x%x \n", command)); return (0); } static void arn_get_hw_encap(struct arn_softc *sc) { ieee80211com_t *ic; struct ath_hal *ah; ic = (ieee80211com_t *)sc; ah = sc->sc_ah; if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, ATH9K_CIPHER_AES_CCM, NULL)) ic->ic_caps |= IEEE80211_C_AES_CCM; if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, ATH9K_CIPHER_AES_OCB, NULL)) ic->ic_caps |= IEEE80211_C_AES; if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, ATH9K_CIPHER_TKIP, NULL)) ic->ic_caps |= IEEE80211_C_TKIP; if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, ATH9K_CIPHER_WEP, NULL)) ic->ic_caps |= IEEE80211_C_WEP; if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, ATH9K_CIPHER_MIC, NULL)) ic->ic_caps |= IEEE80211_C_TKIPMIC; } static void arn_setup_ht_cap(struct arn_softc *sc) { #define ATH9K_HT_CAP_MAXRXAMPDU_65536 0x3 /* 2 ^ 16 */ #define ATH9K_HT_CAP_MPDUDENSITY_8 0x6 /* 8 usec */ uint8_t rx_streams; arn_ht_conf *ht_info = &sc->sc_ht_conf; ht_info->ht_supported = B_TRUE; /* Todo: IEEE80211_HTCAP_SMPS */ ht_info->cap = IEEE80211_HTCAP_CHWIDTH40| IEEE80211_HTCAP_SHORTGI40 | IEEE80211_HTCAP_DSSSCCK40; ht_info->ampdu_factor = ATH9K_HT_CAP_MAXRXAMPDU_65536; ht_info->ampdu_density = ATH9K_HT_CAP_MPDUDENSITY_8; /* set up supported mcs set */ (void) memset(&ht_info->rx_mcs_mask, 0, sizeof (ht_info->rx_mcs_mask)); rx_streams = ISP2(sc->sc_ah->ah_caps.rx_chainmask) ? 1 : 2; ht_info->rx_mcs_mask[0] = 0xff; if (rx_streams >= 2) ht_info->rx_mcs_mask[1] = 0xff; } /* xxx should be used for ht rate set negotiating ? */ static void arn_overwrite_11n_rateset(struct arn_softc *sc) { uint8_t *ht_rs = sc->sc_ht_conf.rx_mcs_mask; int mcs_idx, mcs_count = 0; int i, j; (void) memset(&ieee80211_rateset_11n, 0, sizeof (ieee80211_rateset_11n)); for (i = 0; i < 10; i++) { for (j = 0; j < 8; j++) { if (ht_rs[i] & (1 << j)) { mcs_idx = i * 8 + j; if (mcs_idx >= IEEE80211_HTRATE_MAXSIZE) { break; } ieee80211_rateset_11n.rs_rates[mcs_idx] = (uint8_t)mcs_idx; mcs_count++; } } } ieee80211_rateset_11n.rs_nrates = (uint8_t)mcs_count; ARN_DBG((ARN_DBG_RATE, "arn_overwrite_11n_rateset(): " "MCS rate set supported by this station is as follows:\n")); for (i = 0; i < ieee80211_rateset_11n.rs_nrates; i++) { ARN_DBG((ARN_DBG_RATE, "MCS rate %d is %d\n", i, ieee80211_rateset_11n.rs_rates[i])); } } /* * Update WME parameters for a transmit queue. */ static int arn_tx_queue_update(struct arn_softc *sc, int ac) { #define ATH_EXPONENT_TO_VALUE(v) ((1<ic_wme.wme_chanParams.cap_wmeParams[ac]; struct ath_hal *ah = sc->sc_ah; struct ath9k_tx_queue_info qi; txq = &sc->sc_txq[arn_get_hal_qnum(ac, sc)]; (void) ath9k_hw_get_txq_props(ah, txq->axq_qnum, &qi); /* * TXQ_FLAG_TXOKINT_ENABLE = 0x0001 * TXQ_FLAG_TXERRINT_ENABLE = 0x0001 * TXQ_FLAG_TXDESCINT_ENABLE = 0x0002 * TXQ_FLAG_TXEOLINT_ENABLE = 0x0004 * TXQ_FLAG_TXURNINT_ENABLE = 0x0008 * TXQ_FLAG_BACKOFF_DISABLE = 0x0010 * TXQ_FLAG_COMPRESSION_ENABLE = 0x0020 * TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE = 0x0040 * TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE = 0x0080 */ /* xxx should update these flags here? */ #if 0 qi.tqi_qflags = TXQ_FLAG_TXOKINT_ENABLE | TXQ_FLAG_TXERRINT_ENABLE | TXQ_FLAG_TXDESCINT_ENABLE | TXQ_FLAG_TXURNINT_ENABLE; #endif qi.tqi_aifs = wmep->wmep_aifsn; qi.tqi_cwmin = ATH_EXPONENT_TO_VALUE(wmep->wmep_logcwmin); qi.tqi_cwmax = ATH_EXPONENT_TO_VALUE(wmep->wmep_logcwmax); qi.tqi_readyTime = 0; qi.tqi_burstTime = ATH_TXOP_TO_US(wmep->wmep_txopLimit); ARN_DBG((ARN_DBG_INIT, "%s:" "Q%u" "qflags 0x%x" "aifs %u" "cwmin %u" "cwmax %u" "burstTime %u\n", __func__, txq->axq_qnum, qi.tqi_qflags, qi.tqi_aifs, qi.tqi_cwmin, qi.tqi_cwmax, qi.tqi_burstTime)); if (!ath9k_hw_set_txq_props(ah, txq->axq_qnum, &qi)) { arn_problem("unable to update hardware queue " "parameters for %s traffic!\n", ieee80211_wme_acnames[ac]); return (0); } else { /* push to H/W */ (void) ath9k_hw_resettxqueue(ah, txq->axq_qnum); return (1); } #undef ATH_TXOP_TO_US #undef ATH_EXPONENT_TO_VALUE } /* Update WME parameters */ static int arn_wme_update(ieee80211com_t *ic) { struct arn_softc *sc = (struct arn_softc *)ic; /* updateing */ return (!arn_tx_queue_update(sc, WME_AC_BE) || !arn_tx_queue_update(sc, WME_AC_BK) || !arn_tx_queue_update(sc, WME_AC_VI) || !arn_tx_queue_update(sc, WME_AC_VO) ? EIO : 0); } /* * Update tx/rx chainmask. For legacy association, * hard code chainmask to 1x1, for 11n association, use * the chainmask configuration. */ void arn_update_chainmask(struct arn_softc *sc) { boolean_t is_ht = B_FALSE; sc->sc_flags |= SC_OP_CHAINMASK_UPDATE; is_ht = sc->sc_ht_conf.ht_supported; if (is_ht) { sc->sc_tx_chainmask = sc->sc_ah->ah_caps.tx_chainmask; sc->sc_rx_chainmask = sc->sc_ah->ah_caps.rx_chainmask; } else { sc->sc_tx_chainmask = 1; sc->sc_rx_chainmask = 1; } ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "tx_chainmask = %d, rx_chainmask = %d\n", sc->sc_tx_chainmask, sc->sc_rx_chainmask)); } static int arn_resume(dev_info_t *devinfo) { struct arn_softc *sc; int ret = DDI_SUCCESS; sc = ddi_get_soft_state(arn_soft_state_p, ddi_get_instance(devinfo)); if (sc == NULL) { ARN_DBG((ARN_DBG_INIT, "ath: ath_resume(): " "failed to get soft state\n")); return (DDI_FAILURE); } ARN_LOCK(sc); /* * Set up config space command register(s). Refuse * to resume on failure. */ if (arn_pci_setup(sc) != 0) { ARN_DBG((ARN_DBG_INIT, "ath: ath_resume(): " "ath_pci_setup() failed\n")); ARN_UNLOCK(sc); return (DDI_FAILURE); } if (!(sc->sc_flags & SC_OP_INVALID)) ret = arn_open(sc); ARN_UNLOCK(sc); return (ret); } static int arn_attach(dev_info_t *devinfo, ddi_attach_cmd_t cmd) { struct arn_softc *sc; int instance; int status; int32_t err; uint16_t vendor_id; uint16_t device_id; uint32_t i; uint32_t val; char strbuf[32]; ieee80211com_t *ic; struct ath_hal *ah; wifi_data_t wd = { 0 }; mac_register_t *macp; switch (cmd) { case DDI_ATTACH: break; case DDI_RESUME: return (arn_resume(devinfo)); default: return (DDI_FAILURE); } instance = ddi_get_instance(devinfo); if (ddi_soft_state_zalloc(arn_soft_state_p, instance) != DDI_SUCCESS) { ARN_DBG((ARN_DBG_ATTACH, "arn: " "%s: Unable to alloc softstate\n", __func__)); return (DDI_FAILURE); } sc = ddi_get_soft_state(arn_soft_state_p, ddi_get_instance(devinfo)); ic = (ieee80211com_t *)sc; sc->sc_dev = devinfo; mutex_init(&sc->sc_genlock, NULL, MUTEX_DRIVER, NULL); mutex_init(&sc->sc_serial_rw, NULL, MUTEX_DRIVER, NULL); mutex_init(&sc->sc_txbuflock, NULL, MUTEX_DRIVER, NULL); mutex_init(&sc->sc_rxbuflock, NULL, MUTEX_DRIVER, NULL); mutex_init(&sc->sc_resched_lock, NULL, MUTEX_DRIVER, NULL); #ifdef ARN_IBSS mutex_init(&sc->sc_bcbuflock, NULL, MUTEX_DRIVER, NULL); #endif sc->sc_flags |= SC_OP_INVALID; err = pci_config_setup(devinfo, &sc->sc_cfg_handle); if (err != DDI_SUCCESS) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "pci_config_setup() failed")); goto attach_fail0; } if (arn_pci_setup(sc) != 0) goto attach_fail1; /* Cache line size set up */ arn_pci_config_cachesize(sc); vendor_id = pci_config_get16(sc->sc_cfg_handle, PCI_CONF_VENID); device_id = pci_config_get16(sc->sc_cfg_handle, PCI_CONF_DEVID); ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): vendor 0x%x, " "device id 0x%x, cache size %d\n", vendor_id, device_id, pci_config_get8(sc->sc_cfg_handle, PCI_CONF_CACHE_LINESZ))); pci_config_put8(sc->sc_cfg_handle, PCI_CONF_LATENCY_TIMER, 0xa8); val = pci_config_get32(sc->sc_cfg_handle, 0x40); if ((val & 0x0000ff00) != 0) pci_config_put32(sc->sc_cfg_handle, 0x40, val & 0xffff00ff); err = ddi_regs_map_setup(devinfo, 1, &sc->mem, 0, 0, &arn_reg_accattr, &sc->sc_io_handle); ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "regs map1 = %x err=%d\n", sc->mem, err)); if (err != DDI_SUCCESS) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "ddi_regs_map_setup() failed")); goto attach_fail1; } ah = ath9k_hw_attach(device_id, sc, sc->mem, &status); if (ah == NULL) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "unable to attach hw: H/W status %u\n", status)); goto attach_fail2; } sc->sc_ah = ah; ath9k_hw_getmac(ah, ic->ic_macaddr); /* Get the hardware key cache size. */ sc->sc_keymax = ah->ah_caps.keycache_size; if (sc->sc_keymax > ATH_KEYMAX) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "Warning, using only %u entries in %u key cache\n", ATH_KEYMAX, sc->sc_keymax)); sc->sc_keymax = ATH_KEYMAX; } /* * Reset the key cache since some parts do not * reset the contents on initial power up. */ for (i = 0; i < sc->sc_keymax; i++) (void) ath9k_hw_keyreset(ah, (uint16_t)i); /* * Mark key cache slots associated with global keys * as in use. If we knew TKIP was not to be used we * could leave the +32, +64, and +32+64 slots free. * XXX only for splitmic. */ for (i = 0; i < IEEE80211_WEP_NKID; i++) { set_bit(i, sc->sc_keymap); set_bit(i + 32, sc->sc_keymap); set_bit(i + 64, sc->sc_keymap); set_bit(i + 32 + 64, sc->sc_keymap); } /* Collect the channel list using the default country code */ err = arn_setup_channels(sc); if (err == EINVAL) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "ERR:arn_setup_channels\n")); goto attach_fail3; } /* default to STA mode */ sc->sc_ah->ah_opmode = ATH9K_M_STA; /* Setup rate tables */ arn_rate_attach(sc); arn_setup_rates(sc, IEEE80211_MODE_11A); arn_setup_rates(sc, IEEE80211_MODE_11B); arn_setup_rates(sc, IEEE80211_MODE_11G); /* Setup current mode here */ arn_setcurmode(sc, ATH9K_MODE_11G); /* 802.11g features */ if (sc->sc_have11g) ic->ic_caps |= IEEE80211_C_SHPREAMBLE | IEEE80211_C_SHSLOT; /* short slot time */ /* Temp workaround */ sc->sc_mrretry = 1; sc->sc_config.ath_aggr_prot = 0; /* Setup tx/rx descriptors */ err = arn_desc_alloc(devinfo, sc); if (err != DDI_SUCCESS) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "failed to allocate descriptors: %d\n", err)); goto attach_fail3; } if ((sc->sc_tq = ddi_taskq_create(devinfo, "ath_taskq", 1, TASKQ_DEFAULTPRI, 0)) == NULL) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "ERR:ddi_taskq_create\n")); goto attach_fail4; } /* * Allocate hardware transmit queues: one queue for * beacon frames and one data queue for each QoS * priority. Note that the hal handles reseting * these queues at the needed time. */ #ifdef ARN_IBSS sc->sc_beaconq = arn_beaconq_setup(ah); if (sc->sc_beaconq == (-1)) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "unable to setup a beacon xmit queue\n")); goto attach_fail4; } #endif #ifdef ARN_HOSTAP sc->sc_cabq = arn_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0); if (sc->sc_cabq == NULL) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "unable to setup CAB xmit queue\n")); goto attach_fail4; } sc->sc_config.cabqReadytime = ATH_CABQ_READY_TIME; ath_cabq_update(sc); #endif for (i = 0; i < ARRAY_SIZE(sc->sc_haltype2q); i++) sc->sc_haltype2q[i] = -1; /* Setup data queues */ /* NB: ensure BK queue is the lowest priority h/w queue */ if (!arn_tx_setup(sc, ATH9K_WME_AC_BK)) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "unable to setup xmit queue for BK traffic\n")); goto attach_fail4; } if (!arn_tx_setup(sc, ATH9K_WME_AC_BE)) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "unable to setup xmit queue for BE traffic\n")); goto attach_fail4; } if (!arn_tx_setup(sc, ATH9K_WME_AC_VI)) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "unable to setup xmit queue for VI traffic\n")); goto attach_fail4; } if (!arn_tx_setup(sc, ATH9K_WME_AC_VO)) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "unable to setup xmit queue for VO traffic\n")); goto attach_fail4; } /* * Initializes the noise floor to a reasonable default value. * Later on this will be updated during ANI processing. */ sc->sc_ani.sc_noise_floor = ATH_DEFAULT_NOISE_FLOOR; if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, ATH9K_CIPHER_TKIP, NULL)) { /* * Whether we should enable h/w TKIP MIC. * XXX: if we don't support WME TKIP MIC, then we wouldn't * report WMM capable, so it's always safe to turn on * TKIP MIC in this case. */ (void) ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC, 0, 1, NULL); } /* Get cipher releated capability information */ arn_get_hw_encap(sc); /* * Check whether the separate key cache entries * are required to handle both tx+rx MIC keys. * With split mic keys the number of stations is limited * to 27 otherwise 59. */ if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, ATH9K_CIPHER_TKIP, NULL) && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, ATH9K_CIPHER_MIC, NULL) && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, 0, NULL)) sc->sc_splitmic = 1; /* turn on mcast key search if possible */ if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) (void) ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1, 1, NULL); sc->sc_config.txpowlimit = ATH_TXPOWER_MAX; sc->sc_config.txpowlimit_override = 0; /* 11n Capabilities */ if (ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) { sc->sc_flags |= SC_OP_TXAGGR; sc->sc_flags |= SC_OP_RXAGGR; arn_setup_ht_cap(sc); arn_overwrite_11n_rateset(sc); } sc->sc_tx_chainmask = 1; sc->sc_rx_chainmask = 1; ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "tx_chainmask = %d, rx_chainmask = %d\n", sc->sc_tx_chainmask, sc->sc_rx_chainmask)); /* arn_update_chainmask(sc); */ (void) ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, B_TRUE, NULL); sc->sc_defant = ath9k_hw_getdefantenna(ah); ath9k_hw_getmac(ah, sc->sc_myaddr); if (ah->ah_caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) { ath9k_hw_getbssidmask(ah, sc->sc_bssidmask); ATH_SET_VAP_BSSID_MASK(sc->sc_bssidmask); (void) ath9k_hw_setbssidmask(ah, sc->sc_bssidmask); } /* set default value to short slot time */ sc->sc_slottime = ATH9K_SLOT_TIME_9; (void) ath9k_hw_setslottime(ah, ATH9K_SLOT_TIME_9); /* initialize beacon slots */ for (i = 0; i < ARRAY_SIZE(sc->sc_bslot); i++) sc->sc_bslot[i] = ATH_IF_ID_ANY; /* Save MISC configurations */ sc->sc_config.swBeaconProcess = 1; /* Support QoS/WME */ ic->ic_caps |= IEEE80211_C_WME; ic->ic_wme.wme_update = arn_wme_update; /* Support 802.11n/HT */ if (sc->sc_ht_conf.ht_supported) { ic->ic_htcaps = IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40 | IEEE80211_HTCAP_DSSSCCK40 | IEEE80211_HTCAP_MAXAMSDU_7935 | IEEE80211_HTC_HT | IEEE80211_HTC_AMSDU | IEEE80211_HTCAP_RXSTBC_2STREAM; #ifdef ARN_TX_AGGREGATION ic->ic_htcaps |= IEEE80211_HTC_AMPDU; #endif } /* Header padding requested by driver */ ic->ic_flags |= IEEE80211_F_DATAPAD; /* Support WPA/WPA2 */ ic->ic_caps |= IEEE80211_C_WPA; #if 0 ic->ic_caps |= IEEE80211_C_TXFRAG; /* handle tx frags */ ic->ic_caps |= IEEE80211_C_BGSCAN; /* capable of bg scanning */ #endif ic->ic_phytype = IEEE80211_T_HT; ic->ic_opmode = IEEE80211_M_STA; ic->ic_state = IEEE80211_S_INIT; ic->ic_maxrssi = ARN_MAX_RSSI; ic->ic_set_shortslot = arn_set_shortslot; ic->ic_xmit = arn_tx; ieee80211_attach(ic); ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "ic->ic_curchan->ich_freq: %d\n", ic->ic_curchan->ich_freq)); /* different instance has different WPA door */ (void) snprintf(ic->ic_wpadoor, MAX_IEEE80211STR, "%s_%s%d", WPA_DOOR, ddi_driver_name(devinfo), ddi_get_instance(devinfo)); if (sc->sc_ht_conf.ht_supported) { sc->sc_recv_action = ic->ic_recv_action; ic->ic_recv_action = arn_ampdu_recv_action; // sc->sc_send_action = ic->ic_send_action; // ic->ic_send_action = arn_ampdu_send_action; ic->ic_ampdu_rxmax = sc->sc_ht_conf.ampdu_factor; ic->ic_ampdu_density = sc->sc_ht_conf.ampdu_density; ic->ic_ampdu_limit = ic->ic_ampdu_rxmax; } /* Override 80211 default routines */ sc->sc_newstate = ic->ic_newstate; ic->ic_newstate = arn_newstate; #ifdef ARN_IBSS sc->sc_recv_mgmt = ic->ic_recv_mgmt; ic->ic_recv_mgmt = arn_recv_mgmt; #endif ic->ic_watchdog = arn_watchdog; ic->ic_node_alloc = arn_node_alloc; ic->ic_node_free = arn_node_free; ic->ic_crypto.cs_key_alloc = arn_key_alloc; ic->ic_crypto.cs_key_delete = arn_key_delete; ic->ic_crypto.cs_key_set = arn_key_set; ieee80211_media_init(ic); /* * initialize default tx key */ ic->ic_def_txkey = 0; sc->sc_rx_pend = 0; (void) ath9k_hw_set_interrupts(sc->sc_ah, 0); err = ddi_add_softintr(devinfo, DDI_SOFTINT_LOW, &sc->sc_softint_id, NULL, 0, arn_softint_handler, (caddr_t)sc); if (err != DDI_SUCCESS) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "ddi_add_softintr() failed....\n")); goto attach_fail5; } if (ddi_get_iblock_cookie(devinfo, 0, &sc->sc_iblock) != DDI_SUCCESS) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "Can not get iblock cookie for INT\n")); goto attach_fail6; } if (ddi_add_intr(devinfo, 0, NULL, NULL, arn_isr, (caddr_t)sc) != DDI_SUCCESS) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "Can not set intr for ARN driver\n")); goto attach_fail6; } /* * Provide initial settings for the WiFi plugin; whenever this * information changes, we need to call mac_plugindata_update() */ wd.wd_opmode = ic->ic_opmode; wd.wd_secalloc = WIFI_SEC_NONE; IEEE80211_ADDR_COPY(wd.wd_bssid, ic->ic_bss->in_bssid); ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "IEEE80211_ADDR_COPY(wd.wd_bssid, ic->ic_bss->in_bssid)" "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", wd.wd_bssid[0], wd.wd_bssid[1], wd.wd_bssid[2], wd.wd_bssid[3], wd.wd_bssid[4], wd.wd_bssid[5])); if ((macp = mac_alloc(MAC_VERSION)) == NULL) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "MAC version mismatch\n")); goto attach_fail7; } macp->m_type_ident = MAC_PLUGIN_IDENT_WIFI; macp->m_driver = sc; macp->m_dip = devinfo; macp->m_src_addr = ic->ic_macaddr; macp->m_callbacks = &arn_m_callbacks; macp->m_min_sdu = 0; macp->m_max_sdu = IEEE80211_MTU; macp->m_pdata = &wd; macp->m_pdata_size = sizeof (wd); err = mac_register(macp, &ic->ic_mach); mac_free(macp); if (err != 0) { ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "mac_register err %x\n", err)); goto attach_fail7; } /* Create minor node of type DDI_NT_NET_WIFI */ (void) snprintf(strbuf, sizeof (strbuf), "%s%d", ARN_NODENAME, instance); err = ddi_create_minor_node(devinfo, strbuf, S_IFCHR, instance + 1, DDI_NT_NET_WIFI, 0); if (err != DDI_SUCCESS) ARN_DBG((ARN_DBG_ATTACH, "WARN: arn: arn_attach(): " "Create minor node failed - %d\n", err)); /* Notify link is down now */ mac_link_update(ic->ic_mach, LINK_STATE_DOWN); sc->sc_promisc = B_FALSE; bzero(sc->sc_mcast_refs, sizeof (sc->sc_mcast_refs)); bzero(sc->sc_mcast_hash, sizeof (sc->sc_mcast_hash)); ARN_DBG((ARN_DBG_ATTACH, "arn: arn_attach(): " "Atheros AR%s MAC/BB Rev:%x " "AR%s RF Rev:%x: mem=0x%lx\n", arn_mac_bb_name(ah->ah_macVersion), ah->ah_macRev, arn_rf_name((ah->ah_analog5GhzRev & AR_RADIO_SREV_MAJOR)), ah->ah_phyRev, (unsigned long)sc->mem)); /* XXX: hardware will not be ready until arn_open() being called */ sc->sc_flags |= SC_OP_INVALID; sc->sc_isrunning = 0; return (DDI_SUCCESS); attach_fail7: ddi_remove_intr(devinfo, 0, sc->sc_iblock); attach_fail6: ddi_remove_softintr(sc->sc_softint_id); attach_fail5: (void) ieee80211_detach(ic); attach_fail4: arn_desc_free(sc); if (sc->sc_tq) ddi_taskq_destroy(sc->sc_tq); attach_fail3: ath9k_hw_detach(ah); attach_fail2: ddi_regs_map_free(&sc->sc_io_handle); attach_fail1: pci_config_teardown(&sc->sc_cfg_handle); attach_fail0: sc->sc_flags |= SC_OP_INVALID; /* cleanup tx queues */ mutex_destroy(&sc->sc_txbuflock); for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { if (ARN_TXQ_SETUP(sc, i)) { /* arn_tx_cleanupq(asc, &asc->sc_txq[i]); */ mutex_destroy(&((&sc->sc_txq[i])->axq_lock)); } } mutex_destroy(&sc->sc_rxbuflock); mutex_destroy(&sc->sc_serial_rw); mutex_destroy(&sc->sc_genlock); mutex_destroy(&sc->sc_resched_lock); #ifdef ARN_IBSS mutex_destroy(&sc->sc_bcbuflock); #endif ddi_soft_state_free(arn_soft_state_p, instance); return (DDI_FAILURE); } /* * Suspend transmit/receive for powerdown */ static int arn_suspend(struct arn_softc *sc) { ARN_LOCK(sc); arn_close(sc); ARN_UNLOCK(sc); return (DDI_SUCCESS); } static int32_t arn_detach(dev_info_t *devinfo, ddi_detach_cmd_t cmd) { struct arn_softc *sc; int i; sc = ddi_get_soft_state(arn_soft_state_p, ddi_get_instance(devinfo)); ASSERT(sc != NULL); switch (cmd) { case DDI_DETACH: break; case DDI_SUSPEND: return (arn_suspend(sc)); default: return (DDI_FAILURE); } if (mac_disable(sc->sc_isc.ic_mach) != 0) return (DDI_FAILURE); arn_stop_scantimer(sc); arn_stop_caltimer(sc); /* disable interrupts */ (void) ath9k_hw_set_interrupts(sc->sc_ah, 0); /* * Unregister from the MAC layer subsystem */ (void) mac_unregister(sc->sc_isc.ic_mach); /* free intterrupt resources */ ddi_remove_intr(devinfo, 0, sc->sc_iblock); ddi_remove_softintr(sc->sc_softint_id); /* * NB: the order of these is important: * o call the 802.11 layer before detaching the hal to * insure callbacks into the driver to delete global * key cache entries can be handled * o reclaim the tx queue data structures after calling * the 802.11 layer as we'll get called back to reclaim * node state and potentially want to use them * o to cleanup the tx queues the hal is called, so detach * it last */ ieee80211_detach(&sc->sc_isc); arn_desc_free(sc); ddi_taskq_destroy(sc->sc_tq); if (!(sc->sc_flags & SC_OP_INVALID)) (void) ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); /* cleanup tx queues */ mutex_destroy(&sc->sc_txbuflock); for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { if (ARN_TXQ_SETUP(sc, i)) { arn_tx_cleanupq(sc, &sc->sc_txq[i]); mutex_destroy(&((&sc->sc_txq[i])->axq_lock)); } } ath9k_hw_detach(sc->sc_ah); /* free io handle */ ddi_regs_map_free(&sc->sc_io_handle); pci_config_teardown(&sc->sc_cfg_handle); /* destroy locks */ mutex_destroy(&sc->sc_genlock); mutex_destroy(&sc->sc_serial_rw); mutex_destroy(&sc->sc_rxbuflock); mutex_destroy(&sc->sc_resched_lock); #ifdef ARN_IBSS mutex_destroy(&sc->sc_bcbuflock); #endif ddi_remove_minor_node(devinfo, NULL); ddi_soft_state_free(arn_soft_state_p, ddi_get_instance(devinfo)); return (DDI_SUCCESS); } /* * quiesce(9E) entry point. * * This function is called when the system is single-threaded at high * PIL with preemption disabled. Therefore, this function must not be * blocked. * * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure. * DDI_FAILURE indicates an error condition and should almost never happen. */ static int32_t arn_quiesce(dev_info_t *devinfo) { struct arn_softc *sc; int i; struct ath_hal *ah; sc = ddi_get_soft_state(arn_soft_state_p, ddi_get_instance(devinfo)); if (sc == NULL || (ah = sc->sc_ah) == NULL) return (DDI_FAILURE); /* * Disable interrupts */ (void) ath9k_hw_set_interrupts(ah, 0); /* * Disable TX HW */ for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { if (ARN_TXQ_SETUP(sc, i)) (void) ath9k_hw_stoptxdma(ah, sc->sc_txq[i].axq_qnum); } /* * Disable RX HW */ ath9k_hw_stoppcurecv(ah); ath9k_hw_setrxfilter(ah, 0); (void) ath9k_hw_stopdmarecv(ah); drv_usecwait(3000); /* * Power down HW */ (void) ath9k_hw_phy_disable(ah); return (DDI_SUCCESS); } DDI_DEFINE_STREAM_OPS(arn_dev_ops, nulldev, nulldev, arn_attach, arn_detach, nodev, NULL, D_MP, NULL, arn_quiesce); static struct modldrv arn_modldrv = { &mod_driverops, /* Type of module. This one is a driver */ "Atheros 9000 series driver", /* short description */ &arn_dev_ops /* driver specific ops */ }; static struct modlinkage modlinkage = { MODREV_1, (void *)&arn_modldrv, NULL }; int _info(struct modinfo *modinfop) { return (mod_info(&modlinkage, modinfop)); } int _init(void) { int status; status = ddi_soft_state_init (&arn_soft_state_p, sizeof (struct arn_softc), 1); if (status != 0) return (status); mutex_init(&arn_loglock, NULL, MUTEX_DRIVER, NULL); mac_init_ops(&arn_dev_ops, "arn"); status = mod_install(&modlinkage); if (status != 0) { mac_fini_ops(&arn_dev_ops); mutex_destroy(&arn_loglock); ddi_soft_state_fini(&arn_soft_state_p); } return (status); } int _fini(void) { int status; status = mod_remove(&modlinkage); if (status == 0) { mac_fini_ops(&arn_dev_ops); mutex_destroy(&arn_loglock); ddi_soft_state_fini(&arn_soft_state_p); } return (status); }