diff options
Diffstat (limited to 'drivers/net/wireless/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath9k/main.c | 1925 |
1 files changed, 1010 insertions, 915 deletions
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 3c04044a60b..8db75f6de53 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -15,9 +15,7 @@ */ #include <linux/nl80211.h> -#include "core.h" -#include "reg.h" -#include "hw.h" +#include "ath9k.h" #define ATH_PCI_VERSION "0.1" @@ -28,84 +26,129 @@ MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); MODULE_LICENSE("Dual BSD/GPL"); -static struct pci_device_id ath_pci_id_table[] __devinitdata = { - { PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI */ - { PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */ - { PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI */ - { PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI */ - { PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */ - { PCI_VDEVICE(ATHEROS, 0x002B) }, /* PCI-E */ - { 0 } +static int modparam_nohwcrypt; +module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); +MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); + +/* We use the hw_value as an index into our private channel structure */ + +#define CHAN2G(_freq, _idx) { \ + .center_freq = (_freq), \ + .hw_value = (_idx), \ + .max_power = 30, \ +} + +#define CHAN5G(_freq, _idx) { \ + .band = IEEE80211_BAND_5GHZ, \ + .center_freq = (_freq), \ + .hw_value = (_idx), \ + .max_power = 30, \ +} + +/* Some 2 GHz radios are actually tunable on 2312-2732 + * on 5 MHz steps, we support the channels which we know + * we have calibration data for all cards though to make + * this static */ +static struct ieee80211_channel ath9k_2ghz_chantable[] = { + CHAN2G(2412, 0), /* Channel 1 */ + CHAN2G(2417, 1), /* Channel 2 */ + CHAN2G(2422, 2), /* Channel 3 */ + CHAN2G(2427, 3), /* Channel 4 */ + CHAN2G(2432, 4), /* Channel 5 */ + CHAN2G(2437, 5), /* Channel 6 */ + CHAN2G(2442, 6), /* Channel 7 */ + CHAN2G(2447, 7), /* Channel 8 */ + CHAN2G(2452, 8), /* Channel 9 */ + CHAN2G(2457, 9), /* Channel 10 */ + CHAN2G(2462, 10), /* Channel 11 */ + CHAN2G(2467, 11), /* Channel 12 */ + CHAN2G(2472, 12), /* Channel 13 */ + CHAN2G(2484, 13), /* Channel 14 */ }; -static void ath_detach(struct ath_softc *sc); - -/* return bus cachesize in 4B word units */ - -static void bus_read_cachesize(struct ath_softc *sc, int *csz) -{ - u8 u8tmp; - - pci_read_config_byte(sc->pdev, PCI_CACHE_LINE_SIZE, (u8 *)&u8tmp); - *csz = (int)u8tmp; - - /* - * This check was put in to avoid "unplesant" consequences if - * the bootrom has not fully initialized all PCI devices. - * Sometimes the cache line size register is not set - */ - - if (*csz == 0) - *csz = DEFAULT_CACHELINE >> 2; /* Use the default size */ -} - -static void ath_setcurmode(struct ath_softc *sc, enum wireless_mode mode) -{ - sc->cur_rate_table = sc->hw_rate_table[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); -} +/* Some 5 GHz radios are actually tunable on XXXX-YYYY + * on 5 MHz steps, we support the channels which we know + * we have calibration data for all cards though to make + * this static */ +static struct ieee80211_channel ath9k_5ghz_chantable[] = { + /* _We_ call this UNII 1 */ + CHAN5G(5180, 14), /* Channel 36 */ + CHAN5G(5200, 15), /* Channel 40 */ + CHAN5G(5220, 16), /* Channel 44 */ + CHAN5G(5240, 17), /* Channel 48 */ + /* _We_ call this UNII 2 */ + CHAN5G(5260, 18), /* Channel 52 */ + CHAN5G(5280, 19), /* Channel 56 */ + CHAN5G(5300, 20), /* Channel 60 */ + CHAN5G(5320, 21), /* Channel 64 */ + /* _We_ call this "Middle band" */ + CHAN5G(5500, 22), /* Channel 100 */ + CHAN5G(5520, 23), /* Channel 104 */ + CHAN5G(5540, 24), /* Channel 108 */ + CHAN5G(5560, 25), /* Channel 112 */ + CHAN5G(5580, 26), /* Channel 116 */ + CHAN5G(5600, 27), /* Channel 120 */ + CHAN5G(5620, 28), /* Channel 124 */ + CHAN5G(5640, 29), /* Channel 128 */ + CHAN5G(5660, 30), /* Channel 132 */ + CHAN5G(5680, 31), /* Channel 136 */ + CHAN5G(5700, 32), /* Channel 140 */ + /* _We_ call this UNII 3 */ + CHAN5G(5745, 33), /* Channel 149 */ + CHAN5G(5765, 34), /* Channel 153 */ + CHAN5G(5785, 35), /* Channel 157 */ + CHAN5G(5805, 36), /* Channel 161 */ + CHAN5G(5825, 37), /* Channel 165 */ +}; -static enum wireless_mode ath_chan2mode(struct ath9k_channel *chan) +static void ath_cache_conf_rate(struct ath_softc *sc, + struct ieee80211_conf *conf) { - 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; - - WARN_ON(1); /* should not get here */ - - return ATH9K_MODE_11B; + switch (conf->channel->band) { + case IEEE80211_BAND_2GHZ: + if (conf_is_ht20(conf)) + sc->cur_rate_table = + sc->hw_rate_table[ATH9K_MODE_11NG_HT20]; + else if (conf_is_ht40_minus(conf)) + sc->cur_rate_table = + sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS]; + else if (conf_is_ht40_plus(conf)) + sc->cur_rate_table = + sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS]; + else + sc->cur_rate_table = + sc->hw_rate_table[ATH9K_MODE_11G]; + break; + case IEEE80211_BAND_5GHZ: + if (conf_is_ht20(conf)) + sc->cur_rate_table = + sc->hw_rate_table[ATH9K_MODE_11NA_HT20]; + else if (conf_is_ht40_minus(conf)) + sc->cur_rate_table = + sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS]; + else if (conf_is_ht40_plus(conf)) + sc->cur_rate_table = + sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS]; + else + sc->cur_rate_table = + sc->hw_rate_table[ATH9K_MODE_11A]; + break; + default: + BUG_ON(1); + break; + } } static void ath_update_txpow(struct ath_softc *sc) { - struct ath_hal *ah = sc->sc_ah; + struct ath_hw *ah = sc->sc_ah; u32 txpow; - if (sc->sc_curtxpow != sc->sc_config.txpowlimit) { - ath9k_hw_set_txpowerlimit(ah, sc->sc_config.txpowlimit); + if (sc->curtxpow != sc->config.txpowlimit) { + ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit); /* read back in case value is clamped */ ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow); - sc->sc_curtxpow = txpow; + sc->curtxpow = txpow; } } @@ -176,150 +219,87 @@ static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band) for (i = 0; i < maxrates; i++) { rate[i].bitrate = rate_table->info[i].ratekbps / 100; rate[i].hw_value = rate_table->info[i].ratecode; + if (rate_table->info[i].short_preamble) { + rate[i].hw_value_short = rate_table->info[i].ratecode | + rate_table->info[i].short_preamble; + rate[i].flags = IEEE80211_RATE_SHORT_PREAMBLE; + } sband->n_bitrates++; + DPRINTF(sc, ATH_DBG_CONFIG, "Rate: %2dMbps, ratecode: %2d\n", rate[i].bitrate / 10, rate[i].hw_value); } } -static int ath_setup_channels(struct ath_softc *sc) -{ - struct ath_hal *ah = sc->sc_ah; - int nchan, i, a = 0, b = 0; - u8 regclassids[ATH_REGCLASSIDS_MAX]; - u32 nregclass = 0; - struct ieee80211_supported_band *band_2ghz; - struct ieee80211_supported_band *band_5ghz; - struct ieee80211_channel *chan_2ghz; - struct ieee80211_channel *chan_5ghz; - struct ath9k_channel *c; - - /* Fill in ah->ah_channels */ - if (!ath9k_regd_init_channels(ah, ATH_CHAN_MAX, (u32 *)&nchan, - regclassids, ATH_REGCLASSIDS_MAX, - &nregclass, CTRY_DEFAULT, false, 1)) { - u32 rd = ah->ah_currentRD; - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to collect channel list; " - "regdomain likely %u country code %u\n", - rd, CTRY_DEFAULT); - return -EINVAL; - } - - band_2ghz = &sc->sbands[IEEE80211_BAND_2GHZ]; - band_5ghz = &sc->sbands[IEEE80211_BAND_5GHZ]; - chan_2ghz = sc->channels[IEEE80211_BAND_2GHZ]; - chan_5ghz = sc->channels[IEEE80211_BAND_5GHZ]; - - for (i = 0; i < nchan; i++) { - c = &ah->ah_channels[i]; - if (IS_CHAN_2GHZ(c)) { - chan_2ghz[a].band = IEEE80211_BAND_2GHZ; - chan_2ghz[a].center_freq = c->channel; - chan_2ghz[a].max_power = c->maxTxPower; - - if (c->privFlags & CHANNEL_DISALLOW_ADHOC) - chan_2ghz[a].flags |= IEEE80211_CHAN_NO_IBSS; - if (c->channelFlags & CHANNEL_PASSIVE) - chan_2ghz[a].flags |= IEEE80211_CHAN_PASSIVE_SCAN; - - band_2ghz->n_channels = ++a; - - DPRINTF(sc, ATH_DBG_CONFIG, "2MHz channel: %d, " - "channelFlags: 0x%x\n", - c->channel, c->channelFlags); - } else if (IS_CHAN_5GHZ(c)) { - chan_5ghz[b].band = IEEE80211_BAND_5GHZ; - chan_5ghz[b].center_freq = c->channel; - chan_5ghz[b].max_power = c->maxTxPower; - - if (c->privFlags & CHANNEL_DISALLOW_ADHOC) - chan_5ghz[b].flags |= IEEE80211_CHAN_NO_IBSS; - if (c->channelFlags & CHANNEL_PASSIVE) - chan_5ghz[b].flags |= IEEE80211_CHAN_PASSIVE_SCAN; - - band_5ghz->n_channels = ++b; - - DPRINTF(sc, ATH_DBG_CONFIG, "5MHz channel: %d, " - "channelFlags: 0x%x\n", - c->channel, c->channelFlags); - } - } - - return 0; -} - /* * 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 ath_set_channel(struct ath_softc *sc, struct ath9k_channel *hchan) +int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, + struct ath9k_channel *hchan) { - struct ath_hal *ah = sc->sc_ah; + struct ath_hw *ah = sc->sc_ah; bool fastcc = true, stopped; + struct ieee80211_channel *channel = hw->conf.channel; + int r; 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. - */ - ath9k_hw_set_interrupts(ah, 0); - ath_draintxq(sc, false); - stopped = ath_stoprecv(sc); - - /* 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 = false; - - DPRINTF(sc, ATH_DBG_CONFIG, - "(%u MHz) -> (%u MHz), cflags:%x, chanwidth: %d\n", - sc->sc_ah->ah_curchan->channel, - hchan->channel, hchan->channelFlags, sc->tx_chan_width); - - spin_lock_bh(&sc->sc_resetlock); - if (!ath9k_hw_reset(ah, hchan, sc->tx_chan_width, - sc->sc_tx_chainmask, sc->sc_rx_chainmask, - sc->sc_ht_extprotspacing, fastcc, &status)) { - DPRINTF(sc, ATH_DBG_FATAL, - "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); - spin_unlock_bh(&sc->sc_resetlock); - return -EIO; - } - spin_unlock_bh(&sc->sc_resetlock); + ath9k_ps_wakeup(sc); - sc->sc_flags &= ~SC_OP_CHAINMASK_UPDATE; - sc->sc_flags &= ~SC_OP_FULL_RESET; + /* + * 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. + */ + ath9k_hw_set_interrupts(ah, 0); + ath_drain_all_txq(sc, false); + stopped = ath_stoprecv(sc); - if (ath_startrecv(sc) != 0) { - DPRINTF(sc, ATH_DBG_FATAL, - "Unable to restart recv logic\n"); - return -EIO; - } + /* 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 = false; - ath_setcurmode(sc, ath_chan2mode(hchan)); - ath_update_txpow(sc); - ath9k_hw_set_interrupts(ah, sc->sc_imask); + DPRINTF(sc, ATH_DBG_CONFIG, + "(%u MHz) -> (%u MHz), chanwidth: %d\n", + sc->sc_ah->curchan->channel, + channel->center_freq, sc->tx_chan_width); + + spin_lock_bh(&sc->sc_resetlock); + + r = ath9k_hw_reset(ah, hchan, fastcc); + if (r) { + DPRINTF(sc, ATH_DBG_FATAL, + "Unable to reset channel (%u Mhz) " + "reset status %u\n", + channel->center_freq, r); + spin_unlock_bh(&sc->sc_resetlock); + return r; } + spin_unlock_bh(&sc->sc_resetlock); + + sc->sc_flags &= ~SC_OP_CHAINMASK_UPDATE; + sc->sc_flags &= ~SC_OP_FULL_RESET; + + if (ath_startrecv(sc) != 0) { + DPRINTF(sc, ATH_DBG_FATAL, + "Unable to restart recv logic\n"); + return -EIO; + } + + ath_cache_conf_rate(sc, &hw->conf); + ath_update_txpow(sc); + ath9k_hw_set_interrupts(ah, sc->imask); + ath9k_ps_restore(sc); return 0; } @@ -332,123 +312,122 @@ static int ath_set_channel(struct ath_softc *sc, struct ath9k_channel *hchan) */ static void ath_ani_calibrate(unsigned long data) { - struct ath_softc *sc; - struct ath_hal *ah; + struct ath_softc *sc = (struct ath_softc *)data; + struct ath_hw *ah = sc->sc_ah; bool longcal = false; bool shortcal = false; bool aniflag = false; unsigned int timestamp = jiffies_to_msecs(jiffies); - u32 cal_interval; + u32 cal_interval, short_cal_interval; - sc = (struct ath_softc *)data; - ah = sc->sc_ah; + short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? + ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; /* * don't calibrate when we're scanning. * we are most likely not on our home channel. */ - if (sc->rx.rxfilter & FIF_BCN_PRBRESP_PROMISC) - return; + if (sc->sc_flags & SC_OP_SCANNING) + goto set_timer; /* Long calibration runs independently of short calibration. */ - if ((timestamp - sc->sc_ani.sc_longcal_timer) >= ATH_LONG_CALINTERVAL) { + if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { longcal = true; DPRINTF(sc, ATH_DBG_ANI, "longcal @%lu\n", jiffies); - sc->sc_ani.sc_longcal_timer = timestamp; + sc->ani.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) { + /* Short calibration applies only while caldone is false */ + if (!sc->ani.caldone) { + if ((timestamp - sc->ani.shortcal_timer) >= short_cal_interval) { shortcal = true; DPRINTF(sc, ATH_DBG_ANI, "shortcal @%lu\n", jiffies); - sc->sc_ani.sc_shortcal_timer = timestamp; - sc->sc_ani.sc_resetcal_timer = timestamp; + sc->ani.shortcal_timer = timestamp; + sc->ani.resetcal_timer = timestamp; } } else { - if ((timestamp - sc->sc_ani.sc_resetcal_timer) >= + if ((timestamp - sc->ani.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; + sc->ani.caldone = ath9k_hw_reset_calvalid(ah); + if (sc->ani.caldone) + sc->ani.resetcal_timer = timestamp; } } /* Verify whether we must check ANI */ - if ((timestamp - sc->sc_ani.sc_checkani_timer) >= - ATH_ANI_POLLINTERVAL) { + if ((timestamp - sc->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) { aniflag = true; - sc->sc_ani.sc_checkani_timer = timestamp; + sc->ani.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); + ath9k_hw_ani_monitor(ah, &sc->nodestats, ah->curchan); /* Perform calibration if necessary */ if (longcal || shortcal) { bool iscaldone = false; - if (ath9k_hw_calibrate(ah, ah->ah_curchan, - sc->sc_rx_chainmask, longcal, + if (ath9k_hw_calibrate(ah, ah->curchan, + sc->rx_chainmask, longcal, &iscaldone)) { if (longcal) - sc->sc_ani.sc_noise_floor = + sc->ani.noise_floor = ath9k_hw_getchan_noise(ah, - ah->ah_curchan); + ah->curchan); DPRINTF(sc, ATH_DBG_ANI, "calibrate chan %u/%x nf: %d\n", - ah->ah_curchan->channel, - ah->ah_curchan->channelFlags, - sc->sc_ani.sc_noise_floor); + ah->curchan->channel, + ah->curchan->channelFlags, + sc->ani.noise_floor); } else { DPRINTF(sc, ATH_DBG_ANY, "calibrate chan %u/%x failed\n", - ah->ah_curchan->channel, - ah->ah_curchan->channelFlags); + ah->curchan->channel, + ah->curchan->channelFlags); } - sc->sc_ani.sc_caldone = iscaldone; + sc->ani.caldone = iscaldone; } } +set_timer: /* * 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) + if (sc->sc_ah->config.enable_ani) cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL); - if (!sc->sc_ani.sc_caldone) - cal_interval = min(cal_interval, (u32)ATH_SHORT_CALINTERVAL); + if (!sc->ani.caldone) + cal_interval = min(cal_interval, (u32)short_cal_interval); - mod_timer(&sc->sc_ani.timer, jiffies + msecs_to_jiffies(cal_interval)); + mod_timer(&sc->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); } /* * Update tx/rx chainmask. For legacy association, * hard code chainmask to 1x1, for 11n association, use - * the chainmask configuration. + * the chainmask configuration, for bt coexistence, use + * the chainmask configuration even in legacy mode. */ -static void ath_update_chainmask(struct ath_softc *sc, int is_ht) +void ath_update_chainmask(struct ath_softc *sc, int is_ht) { sc->sc_flags |= SC_OP_CHAINMASK_UPDATE; - 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; + if (is_ht || + (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX)) { + sc->tx_chainmask = sc->sc_ah->caps.tx_chainmask; + sc->rx_chainmask = sc->sc_ah->caps.rx_chainmask; } else { - sc->sc_tx_chainmask = 1; - sc->sc_rx_chainmask = 1; + sc->tx_chainmask = 1; + sc->rx_chainmask = 1; } DPRINTF(sc, ATH_DBG_CONFIG, "tx chmask: %d, rx chmask: %d\n", - sc->sc_tx_chainmask, sc->sc_rx_chainmask); + sc->tx_chainmask, sc->rx_chainmask); } static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) @@ -476,7 +455,7 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) static void ath9k_tasklet(unsigned long data) { struct ath_softc *sc = (struct ath_softc *)data; - u32 status = sc->sc_intrstatus; + u32 status = sc->intrstatus; if (status & ATH9K_INT_FATAL) { /* need a chip reset */ @@ -496,13 +475,13 @@ static void ath9k_tasklet(unsigned long data) } /* re-enable hardware interrupt */ - ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_imask); + ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); } -static irqreturn_t ath_isr(int irq, void *dev) +irqreturn_t ath_isr(int irq, void *dev) { struct ath_softc *sc = dev; - struct ath_hal *ah = sc->sc_ah; + struct ath_hw *ah = sc->sc_ah; enum ath9k_int status; bool sched = false; @@ -527,7 +506,7 @@ static irqreturn_t ath_isr(int irq, void *dev) */ ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ - status &= sc->sc_imask; /* discard unasked-for bits */ + status &= sc->imask; /* discard unasked-for bits */ /* * If there are no status bits set, then this interrupt was not @@ -536,7 +515,8 @@ static irqreturn_t ath_isr(int irq, void *dev) if (!status) return IRQ_NONE; - sc->sc_intrstatus = status; + sc->intrstatus = status; + ath9k_ps_wakeup(sc); if (status & ATH9K_INT_FATAL) { /* need a chip reset */ @@ -583,45 +563,39 @@ static irqreturn_t ath_isr(int irq, void *dev) * it will clear whatever condition caused * the interrupt. */ - ath9k_hw_procmibevent(ah, &sc->sc_halstats); - ath9k_hw_set_interrupts(ah, sc->sc_imask); + ath9k_hw_procmibevent(ah, &sc->nodestats); + ath9k_hw_set_interrupts(ah, sc->imask); } if (status & ATH9K_INT_TIM_TIMER) { - if (!(ah->ah_caps.hw_caps & + if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { /* Clear RxAbort bit so that we can * receive frames */ + ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); ath9k_hw_setrxabort(ah, 0); sched = true; + sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; } } + if (status & ATH9K_INT_TSFOOR) { + /* FIXME: Handle this interrupt for power save */ + sched = true; + } } + ath9k_ps_restore(sc); } while (0); ath_debug_stat_interrupt(sc, status); if (sched) { /* turn off every interrupt except SWBA */ - ath9k_hw_set_interrupts(ah, (sc->sc_imask & ATH9K_INT_SWBA)); + ath9k_hw_set_interrupts(ah, (sc->imask & ATH9K_INT_SWBA)); tasklet_schedule(&sc->intr_tq); } return IRQ_HANDLED; } -static int ath_get_channel(struct ath_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->center_freq) - return i; - } - - return -1; -} - static u32 ath_get_extchanmode(struct ath_softc *sc, struct ieee80211_channel *chan, enum nl80211_channel_type channel_type) @@ -664,20 +638,9 @@ static u32 ath_get_extchanmode(struct ath_softc *sc, return chanmode; } -static int ath_keyset(struct ath_softc *sc, u16 keyix, - struct ath9k_keyval *hk, const u8 mac[ETH_ALEN]) -{ - bool status; - - status = ath9k_hw_set_keycache_entry(sc->sc_ah, - keyix, hk, mac, false); - - return status != false; -} - static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key, - struct ath9k_keyval *hk, - const u8 *addr) + struct ath9k_keyval *hk, const u8 *addr, + bool authenticator) { const u8 *key_rxmic; const u8 *key_txmic; @@ -686,26 +649,33 @@ static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key, key_rxmic = key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY; if (addr == NULL) { - /* Group key installation */ - memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); - return ath_keyset(sc, keyix, hk, addr); - } - if (!sc->sc_splitmic) { /* - * data key goes at first index, - * the hal handles the MIC keys at index+64. + * Group key installation - only two key cache entries are used + * regardless of splitmic capability since group key is only + * used either for TX or RX. */ + if (authenticator) { + memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); + memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_mic)); + } else { + memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); + memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic)); + } + return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); + } + if (!sc->splitmic) { + /* TX and RX keys share the same key cache entry. */ memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic)); - return ath_keyset(sc, keyix, hk, addr); + return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); } - /* - * TX key goes at first index, RX key at +32. - * The hal handles the MIC keys at index+64. - */ + + /* Separate key cache entries for TX and RX */ + + /* TX key goes at first index, RX key at +32. */ memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); - if (!ath_keyset(sc, keyix, hk, NULL)) { - /* Txmic entry failed. No need to proceed further */ + if (!ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, NULL)) { + /* TX MIC entry failed. No need to proceed further */ DPRINTF(sc, ATH_DBG_KEYCACHE, "Setting TX MIC Key Failed\n"); return 0; @@ -713,20 +683,20 @@ static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key, memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); /* XXX delete tx key on failure? */ - return ath_keyset(sc, keyix + 32, hk, addr); + return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix + 32, hk, addr); } static int ath_reserve_key_cache_slot_tkip(struct ath_softc *sc) { int i; - for (i = IEEE80211_WEP_NKID; i < sc->sc_keymax / 2; i++) { - if (test_bit(i, sc->sc_keymap) || - test_bit(i + 64, sc->sc_keymap)) + for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { + if (test_bit(i, sc->keymap) || + test_bit(i + 64, sc->keymap)) continue; /* At least one part of TKIP key allocated */ - if (sc->sc_splitmic && - (test_bit(i + 32, sc->sc_keymap) || - test_bit(i + 64 + 32, sc->sc_keymap))) + if (sc->splitmic && + (test_bit(i + 32, sc->keymap) || + test_bit(i + 64 + 32, sc->keymap))) continue; /* At least one part of TKIP key allocated */ /* Found a free slot for a TKIP key */ @@ -740,55 +710,55 @@ static int ath_reserve_key_cache_slot(struct ath_softc *sc) int i; /* First, try to find slots that would not be available for TKIP. */ - if (sc->sc_splitmic) { - for (i = IEEE80211_WEP_NKID; i < sc->sc_keymax / 4; i++) { - if (!test_bit(i, sc->sc_keymap) && - (test_bit(i + 32, sc->sc_keymap) || - test_bit(i + 64, sc->sc_keymap) || - test_bit(i + 64 + 32, sc->sc_keymap))) + if (sc->splitmic) { + for (i = IEEE80211_WEP_NKID; i < sc->keymax / 4; i++) { + if (!test_bit(i, sc->keymap) && + (test_bit(i + 32, sc->keymap) || + test_bit(i + 64, sc->keymap) || + test_bit(i + 64 + 32, sc->keymap))) return i; - if (!test_bit(i + 32, sc->sc_keymap) && - (test_bit(i, sc->sc_keymap) || - test_bit(i + 64, sc->sc_keymap) || - test_bit(i + 64 + 32, sc->sc_keymap))) + if (!test_bit(i + 32, sc->keymap) && + (test_bit(i, sc->keymap) || + test_bit(i + 64, sc->keymap) || + test_bit(i + 64 + 32, sc->keymap))) return i + 32; - if (!test_bit(i + 64, sc->sc_keymap) && - (test_bit(i , sc->sc_keymap) || - test_bit(i + 32, sc->sc_keymap) || - test_bit(i + 64 + 32, sc->sc_keymap))) + if (!test_bit(i + 64, sc->keymap) && + (test_bit(i , sc->keymap) || + test_bit(i + 32, sc->keymap) || + test_bit(i + 64 + 32, sc->keymap))) return i + 64; - if (!test_bit(i + 64 + 32, sc->sc_keymap) && - (test_bit(i, sc->sc_keymap) || - test_bit(i + 32, sc->sc_keymap) || - test_bit(i + 64, sc->sc_keymap))) + if (!test_bit(i + 64 + 32, sc->keymap) && + (test_bit(i, sc->keymap) || + test_bit(i + 32, sc->keymap) || + test_bit(i + 64, sc->keymap))) return i + 64 + 32; } } else { - for (i = IEEE80211_WEP_NKID; i < sc->sc_keymax / 2; i++) { - if (!test_bit(i, sc->sc_keymap) && - test_bit(i + 64, sc->sc_keymap)) + for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { + if (!test_bit(i, sc->keymap) && + test_bit(i + 64, sc->keymap)) return i; - if (test_bit(i, sc->sc_keymap) && - !test_bit(i + 64, sc->sc_keymap)) + if (test_bit(i, sc->keymap) && + !test_bit(i + 64, sc->keymap)) return i + 64; } } /* No partially used TKIP slots, pick any available slot */ - for (i = IEEE80211_WEP_NKID; i < sc->sc_keymax; i++) { + for (i = IEEE80211_WEP_NKID; i < sc->keymax; i++) { /* Do not allow slots that could be needed for TKIP group keys * to be used. This limitation could be removed if we know that * TKIP will not be used. */ if (i >= 64 && i < 64 + IEEE80211_WEP_NKID) continue; - if (sc->sc_splitmic) { + if (sc->splitmic) { if (i >= 32 && i < 32 + IEEE80211_WEP_NKID) continue; if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID) continue; } - if (!test_bit(i, sc->sc_keymap)) + if (!test_bit(i, sc->keymap)) return i; /* Found a free slot for a key */ } @@ -797,7 +767,8 @@ static int ath_reserve_key_cache_slot(struct ath_softc *sc) } static int ath_key_config(struct ath_softc *sc, - const u8 *addr, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, struct ieee80211_key_conf *key) { struct ath9k_keyval hk; @@ -818,7 +789,7 @@ static int ath_key_config(struct ath_softc *sc, hk.kv_type = ATH9K_CIPHER_AES_CCM; break; default: - return -EINVAL; + return -EOPNOTSUPP; } hk.kv_len = key->keylen; @@ -829,10 +800,10 @@ static int ath_key_config(struct ath_softc *sc, * need to change with virtual interfaces. */ idx = key->keyidx; } else if (key->keyidx) { - struct ieee80211_vif *vif; + if (WARN_ON(!sta)) + return -EOPNOTSUPP; + mac = sta->addr; - mac = addr; - vif = sc->sc_vaps[0]; if (vif->type != NL80211_IFTYPE_AP) { /* Only keyidx 0 should be used with unicast key, but * allow this for client mode for now. */ @@ -840,29 +811,33 @@ static int ath_key_config(struct ath_softc *sc, } else return -EIO; } else { - mac = addr; + if (WARN_ON(!sta)) + return -EOPNOTSUPP; + mac = sta->addr; + if (key->alg == ALG_TKIP) idx = ath_reserve_key_cache_slot_tkip(sc); else idx = ath_reserve_key_cache_slot(sc); if (idx < 0) - return -EIO; /* no free key cache entries */ + return -ENOSPC; /* no free key cache entries */ } if (key->alg == ALG_TKIP) - ret = ath_setkey_tkip(sc, idx, key->key, &hk, mac); + ret = ath_setkey_tkip(sc, idx, key->key, &hk, mac, + vif->type == NL80211_IFTYPE_AP); else - ret = ath_keyset(sc, idx, &hk, mac); + ret = ath9k_hw_set_keycache_entry(sc->sc_ah, idx, &hk, mac); if (!ret) return -EIO; - set_bit(idx, sc->sc_keymap); + set_bit(idx, sc->keymap); if (key->alg == ALG_TKIP) { - set_bit(idx + 64, sc->sc_keymap); - if (sc->sc_splitmic) { - set_bit(idx + 32, sc->sc_keymap); - set_bit(idx + 64 + 32, sc->sc_keymap); + set_bit(idx + 64, sc->keymap); + if (sc->splitmic) { + set_bit(idx + 32, sc->keymap); + set_bit(idx + 64 + 32, sc->keymap); } } @@ -875,18 +850,19 @@ static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key) if (key->hw_key_idx < IEEE80211_WEP_NKID) return; - clear_bit(key->hw_key_idx, sc->sc_keymap); + clear_bit(key->hw_key_idx, sc->keymap); if (key->alg != ALG_TKIP) return; - clear_bit(key->hw_key_idx + 64, sc->sc_keymap); - if (sc->sc_splitmic) { - clear_bit(key->hw_key_idx + 32, sc->sc_keymap); - clear_bit(key->hw_key_idx + 64 + 32, sc->sc_keymap); + clear_bit(key->hw_key_idx + 64, sc->keymap); + if (sc->splitmic) { + clear_bit(key->hw_key_idx + 32, sc->keymap); + clear_bit(key->hw_key_idx + 64 + 32, sc->keymap); } } -static void setup_ht_cap(struct ieee80211_sta_ht_cap *ht_info) +static void setup_ht_cap(struct ath_softc *sc, + struct ieee80211_sta_ht_cap *ht_info) { #define ATH9K_HT_CAP_MAXRXAMPDU_65536 0x3 /* 2 ^ 16 */ #define ATH9K_HT_CAP_MPDUDENSITY_8 0x6 /* 8 usec */ @@ -899,10 +875,23 @@ static void setup_ht_cap(struct ieee80211_sta_ht_cap *ht_info) ht_info->ampdu_factor = ATH9K_HT_CAP_MAXRXAMPDU_65536; ht_info->ampdu_density = ATH9K_HT_CAP_MPDUDENSITY_8; + /* set up supported mcs set */ memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); - ht_info->mcs.rx_mask[0] = 0xff; - ht_info->mcs.rx_mask[1] = 0xff; + + switch(sc->rx_chainmask) { + case 1: + ht_info->mcs.rx_mask[0] = 0xff; + break; + case 3: + case 5: + case 7: + default: + ht_info->mcs.rx_mask[0] = 0xff; + ht_info->mcs.rx_mask[1] = 0xff; + break; + } + ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; } @@ -910,36 +899,33 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf) { - struct ath_vap *avp = (void *)vif->drv_priv; + struct ath_vif *avp = (void *)vif->drv_priv; if (bss_conf->assoc) { DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n", - bss_conf->aid, sc->sc_curbssid); + bss_conf->aid, sc->curbssid); /* New association, store aid */ if (avp->av_opmode == NL80211_IFTYPE_STATION) { - sc->sc_curaid = bss_conf->aid; - ath9k_hw_write_associd(sc->sc_ah, sc->sc_curbssid, - sc->sc_curaid); + sc->curaid = bss_conf->aid; + ath9k_hw_write_associd(sc); } /* Configure the beacon */ - ath_beacon_config(sc, 0); - sc->sc_flags |= SC_OP_BEACONS; + ath_beacon_config(sc, vif); /* 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; + sc->nodestats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER; + sc->nodestats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER; + sc->nodestats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER; + sc->nodestats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER; /* Start ANI */ - mod_timer(&sc->sc_ani.timer, - jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); - + mod_timer(&sc->ani.timer, + jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); } else { DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info DISSOC\n"); - sc->sc_curaid = 0; + sc->curaid = 0; } } @@ -947,6 +933,32 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc, /* LED functions */ /********************************/ +static void ath_led_blink_work(struct work_struct *work) +{ + struct ath_softc *sc = container_of(work, struct ath_softc, + ath_led_blink_work.work); + + if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED)) + return; + ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, + (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); + + queue_delayed_work(sc->hw->workqueue, &sc->ath_led_blink_work, + (sc->sc_flags & SC_OP_LED_ON) ? + msecs_to_jiffies(sc->led_off_duration) : + msecs_to_jiffies(sc->led_on_duration)); + + sc->led_on_duration = + max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25); + sc->led_off_duration = + max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10); + sc->led_on_cnt = sc->led_off_cnt = 0; + if (sc->sc_flags & SC_OP_LED_ON) + sc->sc_flags &= ~SC_OP_LED_ON; + else + sc->sc_flags |= SC_OP_LED_ON; +} + static void ath_led_brightness(struct led_classdev *led_cdev, enum led_brightness brightness) { @@ -956,16 +968,27 @@ static void ath_led_brightness(struct led_classdev *led_cdev, switch (brightness) { case LED_OFF: if (led->led_type == ATH_LED_ASSOC || - led->led_type == ATH_LED_RADIO) + led->led_type == ATH_LED_RADIO) { + ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, + (led->led_type == ATH_LED_RADIO)); sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; - ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, - (led->led_type == ATH_LED_RADIO) ? 1 : - !!(sc->sc_flags & SC_OP_LED_ASSOCIATED)); + if (led->led_type == ATH_LED_RADIO) + sc->sc_flags &= ~SC_OP_LED_ON; + } else { + sc->led_off_cnt++; + } break; case LED_FULL: - if (led->led_type == ATH_LED_ASSOC) + if (led->led_type == ATH_LED_ASSOC) { sc->sc_flags |= SC_OP_LED_ASSOCIATED; - ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); + queue_delayed_work(sc->hw->workqueue, + &sc->ath_led_blink_work, 0); + } else if (led->led_type == ATH_LED_RADIO) { + ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); + sc->sc_flags |= SC_OP_LED_ON; + } else { + sc->led_on_cnt++; + } break; default: break; @@ -1001,6 +1024,7 @@ static void ath_unregister_led(struct ath_led *led) static void ath_deinit_leds(struct ath_softc *sc) { + cancel_delayed_work_sync(&sc->ath_led_blink_work); ath_unregister_led(&sc->assoc_led); sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; ath_unregister_led(&sc->tx_led); @@ -1020,9 +1044,11 @@ static void ath_init_leds(struct ath_softc *sc) /* LED off, active low */ ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); + INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); + trigger = ieee80211_get_radio_led_name(sc->hw); snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), - "ath9k-%s:radio", wiphy_name(sc->hw->wiphy)); + "ath9k-%s::radio", wiphy_name(sc->hw->wiphy)); ret = ath_register_led(sc, &sc->radio_led, trigger); sc->radio_led.led_type = ATH_LED_RADIO; if (ret) @@ -1030,7 +1056,7 @@ static void ath_init_leds(struct ath_softc *sc) trigger = ieee80211_get_assoc_led_name(sc->hw); snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), - "ath9k-%s:assoc", wiphy_name(sc->hw->wiphy)); + "ath9k-%s::assoc", wiphy_name(sc->hw->wiphy)); ret = ath_register_led(sc, &sc->assoc_led, trigger); sc->assoc_led.led_type = ATH_LED_ASSOC; if (ret) @@ -1038,7 +1064,7 @@ static void ath_init_leds(struct ath_softc *sc) trigger = ieee80211_get_tx_led_name(sc->hw); snprintf(sc->tx_led.name, sizeof(sc->tx_led.name), - "ath9k-%s:tx", wiphy_name(sc->hw->wiphy)); + "ath9k-%s::tx", wiphy_name(sc->hw->wiphy)); ret = ath_register_led(sc, &sc->tx_led, trigger); sc->tx_led.led_type = ATH_LED_TX; if (ret) @@ -1046,7 +1072,7 @@ static void ath_init_leds(struct ath_softc *sc) trigger = ieee80211_get_rx_led_name(sc->hw); snprintf(sc->rx_led.name, sizeof(sc->rx_led.name), - "ath9k-%s:rx", wiphy_name(sc->hw->wiphy)); + "ath9k-%s::rx", wiphy_name(sc->hw->wiphy)); ret = ath_register_led(sc, &sc->rx_led, trigger); sc->rx_led.led_type = ATH_LED_RX; if (ret) @@ -1058,32 +1084,22 @@ fail: ath_deinit_leds(sc); } -#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) - -/*******************/ -/* Rfkill */ -/*******************/ - -static void ath_radio_enable(struct ath_softc *sc) +void ath_radio_enable(struct ath_softc *sc) { - struct ath_hal *ah = sc->sc_ah; - int status; + struct ath_hw *ah = sc->sc_ah; + struct ieee80211_channel *channel = sc->hw->conf.channel; + int r; + ath9k_ps_wakeup(sc); spin_lock_bh(&sc->sc_resetlock); - if (!ath9k_hw_reset(ah, ah->ah_curchan, - sc->tx_chan_width, - sc->sc_tx_chainmask, - sc->sc_rx_chainmask, - sc->sc_ht_extprotspacing, - false, &status)) { + + r = ath9k_hw_reset(ah, ah->curchan, false); + + if (r) { DPRINTF(sc, ATH_DBG_FATAL, - "Unable to reset channel %u (%uMhz) " - "flags 0x%x hal status %u\n", - ath9k_hw_mhz2ieee(ah, - ah->ah_curchan->channel, - ah->ah_curchan->channelFlags), - ah->ah_curchan->channel, - ah->ah_curchan->channelFlags, status); + "Unable to reset channel %u (%uMhz) ", + "reset status %u\n", + channel->center_freq, r); } spin_unlock_bh(&sc->sc_resetlock); @@ -1095,10 +1111,10 @@ static void ath_radio_enable(struct ath_softc *sc) } if (sc->sc_flags & SC_OP_BEACONS) - ath_beacon_config(sc, ATH_IF_ID_ANY); /* restart beacons */ + ath_beacon_config(sc, NULL); /* restart beacons */ /* Re-Enable interrupts */ - ath9k_hw_set_interrupts(ah, sc->sc_imask); + ath9k_hw_set_interrupts(ah, sc->imask); /* Enable LED */ ath9k_hw_cfg_output(ah, ATH_LED_PIN, @@ -1106,14 +1122,16 @@ static void ath_radio_enable(struct ath_softc *sc) ath9k_hw_set_gpio(ah, ATH_LED_PIN, 0); ieee80211_wake_queues(sc->hw); + ath9k_ps_restore(sc); } -static void ath_radio_disable(struct ath_softc *sc) +void ath_radio_disable(struct ath_softc *sc) { - struct ath_hal *ah = sc->sc_ah; - int status; - + struct ath_hw *ah = sc->sc_ah; + struct ieee80211_channel *channel = sc->hw->conf.channel; + int r; + ath9k_ps_wakeup(sc); ieee80211_stop_queues(sc->hw); /* Disable LED */ @@ -1123,38 +1141,37 @@ static void ath_radio_disable(struct ath_softc *sc) /* Disable interrupts */ ath9k_hw_set_interrupts(ah, 0); - ath_draintxq(sc, false); /* clear pending tx frames */ + ath_drain_all_txq(sc, false); /* clear pending tx frames */ ath_stoprecv(sc); /* turn off frame recv */ ath_flushrecv(sc); /* flush recv queue */ spin_lock_bh(&sc->sc_resetlock); - if (!ath9k_hw_reset(ah, ah->ah_curchan, - sc->tx_chan_width, - sc->sc_tx_chainmask, - sc->sc_rx_chainmask, - sc->sc_ht_extprotspacing, - false, &status)) { + r = ath9k_hw_reset(ah, ah->curchan, false); + if (r) { DPRINTF(sc, ATH_DBG_FATAL, "Unable to reset channel %u (%uMhz) " - "flags 0x%x hal status %u\n", - ath9k_hw_mhz2ieee(ah, - ah->ah_curchan->channel, - ah->ah_curchan->channelFlags), - ah->ah_curchan->channel, - ah->ah_curchan->channelFlags, status); + "reset status %u\n", + channel->center_freq, r); } spin_unlock_bh(&sc->sc_resetlock); ath9k_hw_phy_disable(ah); ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); + ath9k_ps_restore(sc); } +#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) + +/*******************/ +/* Rfkill */ +/*******************/ + static bool ath_is_rfkill_set(struct ath_softc *sc) { - struct ath_hal *ah = sc->sc_ah; + struct ath_hw *ah = sc->sc_ah; - return ath9k_hw_gpio_get(ah, ah->ah_rfkill_gpio) == - ah->ah_rfkill_polarity; + return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == + ah->rfkill_polarity; } /* h/w rfkill poll function */ @@ -1238,7 +1255,7 @@ static int ath_init_sw_rfkill(struct ath_softc *sc) } snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name), - "ath9k-%s:rfkill", wiphy_name(sc->hw->wiphy)); + "ath9k-%s::rfkill", wiphy_name(sc->hw->wiphy)); sc->rf_kill.rfkill->name = sc->rf_kill.rfkill_name; sc->rf_kill.rfkill->data = sc; sc->rf_kill.rfkill->toggle_radio = ath_sw_toggle_radio; @@ -1251,7 +1268,7 @@ static int ath_init_sw_rfkill(struct ath_softc *sc) /* Deinitialize rfkill */ static void ath_deinit_rfkill(struct ath_softc *sc) { - if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); if (sc->sc_flags & SC_OP_RFKILL_REGISTERED) { @@ -1263,7 +1280,7 @@ static void ath_deinit_rfkill(struct ath_softc *sc) static int ath_start_rfkill_poll(struct ath_softc *sc) { - if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) queue_delayed_work(sc->hw->workqueue, &sc->rf_kill.rfkill_poll, 0); @@ -1274,13 +1291,7 @@ static int ath_start_rfkill_poll(struct ath_softc *sc) rfkill_free(sc->rf_kill.rfkill); /* Deinitialize the device */ - ath_detach(sc); - if (sc->pdev->irq) - free_irq(sc->pdev->irq, sc); - pci_iounmap(sc->pdev, sc->mem); - pci_release_region(sc->pdev, 0); - pci_disable_device(sc->pdev); - ieee80211_free_hw(sc->hw); + ath_cleanup(sc); return -EIO; } else { sc->sc_flags |= SC_OP_RFKILL_REGISTERED; @@ -1291,18 +1302,39 @@ static int ath_start_rfkill_poll(struct ath_softc *sc) } #endif /* CONFIG_RFKILL */ -static void ath_detach(struct ath_softc *sc) +void ath_cleanup(struct ath_softc *sc) +{ + ath_detach(sc); + free_irq(sc->irq, sc); + ath_bus_cleanup(sc); + kfree(sc->sec_wiphy); + ieee80211_free_hw(sc->hw); +} + +void ath_detach(struct ath_softc *sc) { struct ieee80211_hw *hw = sc->hw; int i = 0; + ath9k_ps_wakeup(sc); + DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n"); #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) ath_deinit_rfkill(sc); #endif ath_deinit_leds(sc); + cancel_work_sync(&sc->chan_work); + cancel_delayed_work_sync(&sc->wiphy_work); + for (i = 0; i < sc->num_sec_wiphy; i++) { + struct ath_wiphy *aphy = sc->sec_wiphy[i]; + if (aphy == NULL) + continue; + sc->sec_wiphy[i] = NULL; + ieee80211_unregister_hw(aphy->hw); + ieee80211_free_hw(aphy->hw); + } ieee80211_unregister_hw(hw); ath_rx_cleanup(sc); ath_tx_cleanup(sc); @@ -1320,11 +1352,12 @@ static void ath_detach(struct ath_softc *sc) ath9k_hw_detach(sc->sc_ah); ath9k_exit_debug(sc); + ath9k_ps_restore(sc); } static int ath_init(u16 devid, struct ath_softc *sc) { - struct ath_hal *ah = NULL; + struct ath_hw *ah = NULL; int status; int error = 0, i; int csz = 0; @@ -1335,55 +1368,52 @@ static int ath_init(u16 devid, struct ath_softc *sc) if (ath9k_init_debug(sc) < 0) printk(KERN_ERR "Unable to create debugfs files\n"); + spin_lock_init(&sc->wiphy_lock); spin_lock_init(&sc->sc_resetlock); spin_lock_init(&sc->sc_serial_rw); mutex_init(&sc->mutex); tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); - tasklet_init(&sc->bcon_tasklet, ath9k_beacon_tasklet, + tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, (unsigned long)sc); /* * Cache line size is used to size and align various * structures used to communicate with the hardware. */ - bus_read_cachesize(sc, &csz); + ath_read_cachesize(sc, &csz); /* XXX assert csz is non-zero */ - sc->sc_cachelsz = csz << 2; /* convert to bytes */ + sc->cachelsz = csz << 2; /* convert to bytes */ - ah = ath9k_hw_attach(devid, sc, sc->mem, &status); + ah = ath9k_hw_attach(devid, sc, &status); if (ah == NULL) { DPRINTF(sc, ATH_DBG_FATAL, - "Unable to attach hardware; HAL status %u\n", status); + "Unable to attach hardware; HAL status %d\n", status); error = -ENXIO; goto bad; } sc->sc_ah = ah; /* Get the hardware key cache size. */ - sc->sc_keymax = ah->ah_caps.keycache_size; - if (sc->sc_keymax > ATH_KEYMAX) { + sc->keymax = ah->caps.keycache_size; + if (sc->keymax > ATH_KEYMAX) { DPRINTF(sc, ATH_DBG_KEYCACHE, "Warning, using only %u entries in %u key cache\n", - ATH_KEYMAX, sc->sc_keymax); - sc->sc_keymax = ATH_KEYMAX; + ATH_KEYMAX, sc->keymax); + 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++) + for (i = 0; i < sc->keymax; i++) ath9k_hw_keyreset(ah, (u16) i); - /* Collect the channel list using the default country code */ - - error = ath_setup_channels(sc); - if (error) + if (ath9k_regd_init(sc->sc_ah)) goto bad; /* default to MONITOR mode */ - sc->sc_ah->ah_opmode = NL80211_IFTYPE_MONITOR; - + sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; /* Setup rate tables */ @@ -1412,7 +1442,7 @@ static int ath_init(u16 devid, struct ath_softc *sc) goto bad2; } - sc->sc_config.cabqReadytime = ATH_CABQ_READY_TIME; + sc->config.cabqReadytime = ATH_CABQ_READY_TIME; ath_cabq_update(sc); for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++) @@ -1449,8 +1479,8 @@ static int ath_init(u16 devid, struct ath_softc *sc) /* 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; - setup_timer(&sc->sc_ani.timer, ath_ani_calibrate, (unsigned long)sc); + sc->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR; + setup_timer(&sc->ani.timer, ath_ani_calibrate, (unsigned long)sc); if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, ATH9K_CIPHER_TKIP, NULL)) { @@ -1476,60 +1506,62 @@ static int ath_init(u16 devid, struct ath_softc *sc) ATH9K_CIPHER_MIC, NULL) && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, 0, NULL)) - sc->sc_splitmic = 1; + 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; + sc->config.txpowlimit = ATH_TXPOWER_MAX; /* 11n Capabilities */ - if (ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) { + if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { sc->sc_flags |= SC_OP_TXAGGR; sc->sc_flags |= SC_OP_RXAGGR; } - sc->sc_tx_chainmask = ah->ah_caps.tx_chainmask; - sc->sc_rx_chainmask = ah->ah_caps.rx_chainmask; + sc->tx_chainmask = ah->caps.tx_chainmask; + sc->rx_chainmask = ah->caps.rx_chainmask; ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL); sc->rx.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); - ath9k_hw_setbssidmask(ah, sc->sc_bssidmask); - } + if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) + memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN); sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */ /* initialize beacon slots */ - for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) - sc->beacon.bslot[i] = ATH_IF_ID_ANY; + for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { + sc->beacon.bslot[i] = NULL; + sc->beacon.bslot_aphy[i] = NULL; + } /* save MISC configurations */ - sc->sc_config.swBeaconProcess = 1; + sc->config.swBeaconProcess = 1; /* setup channels and rates */ - sc->sbands[IEEE80211_BAND_2GHZ].channels = - sc->channels[IEEE80211_BAND_2GHZ]; + sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable; sc->sbands[IEEE80211_BAND_2GHZ].bitrates = sc->rates[IEEE80211_BAND_2GHZ]; sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; + sc->sbands[IEEE80211_BAND_2GHZ].n_channels = + ARRAY_SIZE(ath9k_2ghz_chantable); - if (test_bit(ATH9K_MODE_11A, sc->sc_ah->ah_caps.wireless_modes)) { - sc->sbands[IEEE80211_BAND_5GHZ].channels = - sc->channels[IEEE80211_BAND_5GHZ]; + if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { + sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; sc->sbands[IEEE80211_BAND_5GHZ].bitrates = sc->rates[IEEE80211_BAND_5GHZ]; sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; + sc->sbands[IEEE80211_BAND_5GHZ].n_channels = + ARRAY_SIZE(ath9k_5ghz_chantable); } + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX) + ath9k_hw_btcoex_enable(sc->sc_ah); + return 0; bad2: /* cleanup tx queues */ @@ -1544,49 +1576,67 @@ bad: return error; } -static int ath_attach(u16 devid, struct ath_softc *sc) +void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) { - struct ieee80211_hw *hw = sc->hw; - int error = 0, i; - - DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n"); - - error = ath_init(devid, sc); - if (error != 0) - return error; - - /* get mac address from hardware and set in mac80211 */ - - SET_IEEE80211_PERM_ADDR(hw, sc->sc_myaddr); - hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | IEEE80211_HW_SIGNAL_DBM | - IEEE80211_HW_AMPDU_AGGREGATION; + IEEE80211_HW_AMPDU_AGGREGATION | + IEEE80211_HW_SUPPORTS_PS | + IEEE80211_HW_PS_NULLFUNC_STACK | + IEEE80211_HW_SPECTRUM_MGMT; + + if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) + hw->flags |= IEEE80211_HW_MFP_CAPABLE; hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_AP) | BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); + hw->wiphy->reg_notifier = ath9k_reg_notifier; + hw->wiphy->strict_regulatory = true; + hw->queues = 4; hw->max_rates = 4; + hw->channel_change_time = 5000; + hw->max_listen_interval = 10; hw->max_rate_tries = ATH_11N_TXMAXTRY; hw->sta_data_size = sizeof(struct ath_node); - hw->vif_data_size = sizeof(struct ath_vap); + hw->vif_data_size = sizeof(struct ath_vif); hw->rate_control_algorithm = "ath9k_rate_control"; - if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) { - setup_ht_cap(&sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); - if (test_bit(ATH9K_MODE_11A, sc->sc_ah->ah_caps.wireless_modes)) - setup_ht_cap(&sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); - } - - hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &sc->sbands[IEEE80211_BAND_2GHZ]; - if (test_bit(ATH9K_MODE_11A, sc->sc_ah->ah_caps.wireless_modes)) + hw->wiphy->bands[IEEE80211_BAND_2GHZ] = + &sc->sbands[IEEE80211_BAND_2GHZ]; + if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &sc->sbands[IEEE80211_BAND_5GHZ]; +} + +int ath_attach(u16 devid, struct ath_softc *sc) +{ + struct ieee80211_hw *hw = sc->hw; + const struct ieee80211_regdomain *regd; + int error = 0, i; + + DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n"); + + error = ath_init(devid, sc); + if (error != 0) + return error; + + /* get mac address from hardware and set in mac80211 */ + + SET_IEEE80211_PERM_ADDR(hw, sc->sc_ah->macaddr); + + ath_set_hw_capab(sc, hw); + + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) { + setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); + if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) + setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); + } /* initialize tx/rx engine */ error = ath_tx_init(sc, ATH_TXBUF); @@ -1599,7 +1649,7 @@ static int ath_attach(u16 devid, struct ath_softc *sc) #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) /* Initialze h/w Rfkill */ - if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll); /* Initialize s/w rfkill */ @@ -1608,11 +1658,39 @@ static int ath_attach(u16 devid, struct ath_softc *sc) goto error_attach; #endif + if (ath9k_is_world_regd(sc->sc_ah)) { + /* Anything applied here (prior to wiphy registration) gets + * saved on the wiphy orig_* parameters */ + regd = ath9k_world_regdomain(sc->sc_ah); + hw->wiphy->custom_regulatory = true; + hw->wiphy->strict_regulatory = false; + } else { + /* This gets applied in the case of the absense of CRDA, + * it's our own custom world regulatory domain, similar to + * cfg80211's but we enable passive scanning */ + regd = ath9k_default_world_regdomain(); + } + wiphy_apply_custom_regulatory(hw->wiphy, regd); + ath9k_reg_apply_radar_flags(hw->wiphy); + ath9k_reg_apply_world_flags(hw->wiphy, NL80211_REGDOM_SET_BY_DRIVER); + + INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work); + INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work); + sc->wiphy_scheduler_int = msecs_to_jiffies(500); + error = ieee80211_register_hw(hw); + if (!ath9k_is_world_regd(sc->sc_ah)) { + error = regulatory_hint(hw->wiphy, + sc->sc_ah->regulatory.alpha2); + if (error) + goto error_attach; + } + /* Initialize LED control */ ath_init_leds(sc); + return 0; error_attach: @@ -1629,24 +1707,20 @@ error_attach: int ath_reset(struct ath_softc *sc, bool retry_tx) { - struct ath_hal *ah = sc->sc_ah; - int status; - int error = 0; + struct ath_hw *ah = sc->sc_ah; + struct ieee80211_hw *hw = sc->hw; + int r; ath9k_hw_set_interrupts(ah, 0); - ath_draintxq(sc, retry_tx); + ath_drain_all_txq(sc, retry_tx); ath_stoprecv(sc); ath_flushrecv(sc); spin_lock_bh(&sc->sc_resetlock); - 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, false, &status)) { + r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); + if (r) DPRINTF(sc, ATH_DBG_FATAL, - "Unable to reset hardware; hal status %u\n", status); - error = -EIO; - } + "Unable to reset hardware; reset status %u\n", r); spin_unlock_bh(&sc->sc_resetlock); if (ath_startrecv(sc) != 0) @@ -1657,14 +1731,14 @@ int ath_reset(struct ath_softc *sc, bool retry_tx) * that changes the channel so update any state that * might change as a result. */ - ath_setcurmode(sc, ath_chan2mode(sc->sc_ah->ah_curchan)); + ath_cache_conf_rate(sc, &hw->conf); ath_update_txpow(sc); if (sc->sc_flags & SC_OP_BEACONS) - ath_beacon_config(sc, ATH_IF_ID_ANY); /* restart beacons */ + ath_beacon_config(sc, NULL); /* restart beacons */ - ath9k_hw_set_interrupts(ah, sc->sc_imask); + ath9k_hw_set_interrupts(ah, sc->imask); if (retry_tx) { int i; @@ -1677,7 +1751,7 @@ int ath_reset(struct ath_softc *sc, bool retry_tx) } } - return error; + return r; } /* @@ -1701,6 +1775,7 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", name, nbuf, ndesc); + INIT_LIST_HEAD(head); /* ath_desc must be a multiple of DWORDs */ if ((sizeof(struct ath_desc) % 4) != 0) { DPRINTF(sc, ATH_DBG_FATAL, "ath_desc not DWORD aligned\n"); @@ -1717,7 +1792,7 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, * descriptors that cross the 4K page boundary. Assume * one skipped descriptor per 4K page. */ - if (!(sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { + if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { u32 ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); u32 dma_len; @@ -1731,9 +1806,8 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, } /* allocate descriptors */ - dd->dd_desc = pci_alloc_consistent(sc->pdev, - dd->dd_desc_len, - &dd->dd_desc_paddr); + dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, + &dd->dd_desc_paddr, GFP_KERNEL); if (dd->dd_desc == NULL) { error = -ENOMEM; goto fail; @@ -1745,20 +1819,18 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, /* allocate buffers */ bsize = sizeof(struct ath_buf) * nbuf; - bf = kmalloc(bsize, GFP_KERNEL); + bf = kzalloc(bsize, GFP_KERNEL); if (bf == NULL) { error = -ENOMEM; goto fail2; } - memset(bf, 0, bsize); dd->dd_bufptr = bf; - INIT_LIST_HEAD(head); for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { bf->bf_desc = ds; bf->bf_daddr = DS2PHYS(dd, ds); - if (!(sc->sc_ah->ah_caps.hw_caps & + if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { /* * Skip descriptor addresses which can cause 4KB @@ -1779,8 +1851,8 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, } return 0; fail2: - pci_free_consistent(sc->pdev, - dd->dd_desc_len, dd->dd_desc, dd->dd_desc_paddr); + dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, + dd->dd_desc_paddr); fail: memset(dd, 0, sizeof(*dd)); return error; @@ -1793,8 +1865,8 @@ void ath_descdma_cleanup(struct ath_softc *sc, struct ath_descdma *dd, struct list_head *head) { - pci_free_consistent(sc->pdev, - dd->dd_desc_len, dd->dd_desc, dd->dd_desc_paddr); + dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, + dd->dd_desc_paddr); INIT_LIST_HEAD(head); kfree(dd->dd_bufptr); @@ -1851,33 +1923,81 @@ int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc) return qnum; } +/* XXX: Remove me once we don't depend on ath9k_channel for all + * this redundant data */ +void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, + struct ath9k_channel *ichan) +{ + struct ieee80211_channel *chan = hw->conf.channel; + struct ieee80211_conf *conf = &hw->conf; + + ichan->channel = chan->center_freq; + ichan->chan = chan; + + if (chan->band == IEEE80211_BAND_2GHZ) { + ichan->chanmode = CHANNEL_G; + ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM; + } else { + ichan->chanmode = CHANNEL_A; + ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; + } + + sc->tx_chan_width = ATH9K_HT_MACMODE_20; + + if (conf_is_ht(conf)) { + if (conf_is_ht40(conf)) + sc->tx_chan_width = ATH9K_HT_MACMODE_2040; + + ichan->chanmode = ath_get_extchanmode(sc, chan, + conf->channel_type); + } +} + /**********************/ /* mac80211 callbacks */ /**********************/ static int ath9k_start(struct ieee80211_hw *hw) { - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; struct ieee80211_channel *curchan = hw->conf.channel; struct ath9k_channel *init_channel; - int error = 0, pos, status; + int r, pos; DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with " "initial channel: %d MHz\n", curchan->center_freq); - /* setup initial channel */ + mutex_lock(&sc->mutex); - pos = ath_get_channel(sc, curchan); - if (pos == -1) { - DPRINTF(sc, ATH_DBG_FATAL, "Invalid channel: %d\n", curchan->center_freq); - error = -EINVAL; - goto error; + if (ath9k_wiphy_started(sc)) { + if (sc->chan_idx == curchan->hw_value) { + /* + * Already on the operational channel, the new wiphy + * can be marked active. + */ + aphy->state = ATH_WIPHY_ACTIVE; + ieee80211_wake_queues(hw); + } else { + /* + * Another wiphy is on another channel, start the new + * wiphy in paused state. + */ + aphy->state = ATH_WIPHY_PAUSED; + ieee80211_stop_queues(hw); + } + mutex_unlock(&sc->mutex); + return 0; } + aphy->state = ATH_WIPHY_ACTIVE; - sc->tx_chan_width = ATH9K_HT_MACMODE_20; - sc->sc_ah->ah_channels[pos].chanmode = - (curchan->band == IEEE80211_BAND_2GHZ) ? CHANNEL_G : CHANNEL_A; - init_channel = &sc->sc_ah->ah_channels[pos]; + /* setup initial channel */ + + pos = curchan->hw_value; + + sc->chan_idx = pos; + init_channel = &sc->sc_ah->channels[pos]; + ath9k_update_ichannel(sc, hw, init_channel); /* Reset SERDES registers */ ath9k_hw_configpcipowersave(sc->sc_ah, 0); @@ -1890,17 +2010,14 @@ static int ath9k_start(struct ieee80211_hw *hw) * and then setup of the interrupt mask. */ spin_lock_bh(&sc->sc_resetlock); - 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, false, &status)) { + r = ath9k_hw_reset(sc->sc_ah, init_channel, false); + if (r) { DPRINTF(sc, ATH_DBG_FATAL, - "Unable to reset hardware; hal status %u " - "(freq %u flags 0x%x)\n", status, - init_channel->channel, init_channel->channelFlags); - error = -EIO; + "Unable to reset hardware; reset status %u " + "(freq %u MHz)\n", r, + curchan->center_freq); spin_unlock_bh(&sc->sc_resetlock); - goto error; + goto mutex_unlock; } spin_unlock_bh(&sc->sc_resetlock); @@ -1920,66 +2037,56 @@ static int ath9k_start(struct ieee80211_hw *hw) if (ath_startrecv(sc) != 0) { DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); - error = -EIO; - goto error; + r = -EIO; + goto mutex_unlock; } /* Setup our intr mask. */ - sc->sc_imask = ATH9K_INT_RX | ATH9K_INT_TX + sc->imask = ATH9K_INT_RX | ATH9K_INT_TX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; - if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_GTT) - sc->sc_imask |= ATH9K_INT_GTT; - - if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) - sc->sc_imask |= ATH9K_INT_CST; + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_GTT) + sc->imask |= ATH9K_INT_GTT; - /* - * Enable MIB interrupts when there are hardware phy counters. - * Note we only do this (at the moment) for station mode. - */ - if (ath9k_hw_phycounters(sc->sc_ah) && - ((sc->sc_ah->ah_opmode == NL80211_IFTYPE_STATION) || - (sc->sc_ah->ah_opmode == NL80211_IFTYPE_ADHOC))) - sc->sc_imask |= ATH9K_INT_MIB; - /* - * 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. - */ - if ((sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_ENHANCEDPM) && - (sc->sc_ah->ah_opmode == NL80211_IFTYPE_STATION) && - !sc->sc_config.swBeaconProcess) - sc->sc_imask |= ATH9K_INT_TIM; + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) + sc->imask |= ATH9K_INT_CST; - ath_setcurmode(sc, ath_chan2mode(init_channel)); + ath_cache_conf_rate(sc, &hw->conf); sc->sc_flags &= ~SC_OP_INVALID; /* Disable BMISS interrupt when we're not associated */ - sc->sc_imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); - ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_imask); + sc->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); + ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); - ieee80211_wake_queues(sc->hw); + ieee80211_wake_queues(hw); #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) - error = ath_start_rfkill_poll(sc); + r = ath_start_rfkill_poll(sc); #endif -error: - return error; +mutex_unlock: + mutex_unlock(&sc->mutex); + + return r; } static int ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; struct ath_tx_control txctl; int hdrlen, padsize; + if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { + printk(KERN_DEBUG "ath9k: %s: TX in unexpected wiphy state " + "%d\n", wiphy_name(hw->wiphy), aphy->state); + goto exit; + } + memset(&txctl, 0, sizeof(struct ath_tx_control)); /* @@ -2013,7 +2120,7 @@ static int ath9k_tx(struct ieee80211_hw *hw, DPRINTF(sc, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); - if (ath_tx_start(sc, skb, &txctl) != 0) { + if (ath_tx_start(hw, skb, &txctl) != 0) { DPRINTF(sc, ATH_DBG_XMIT, "TX failed\n"); goto exit; } @@ -2026,30 +2133,38 @@ exit: static void ath9k_stop(struct ieee80211_hw *hw) { - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + + aphy->state = ATH_WIPHY_INACTIVE; if (sc->sc_flags & SC_OP_INVALID) { DPRINTF(sc, ATH_DBG_ANY, "Device not present\n"); return; } - DPRINTF(sc, ATH_DBG_CONFIG, "Cleaning up\n"); + mutex_lock(&sc->mutex); + + ieee80211_stop_queues(hw); - ieee80211_stop_queues(sc->hw); + if (ath9k_wiphy_started(sc)) { + mutex_unlock(&sc->mutex); + return; /* another wiphy still in use */ + } /* make sure h/w will not generate any interrupt * before setting the invalid flag. */ ath9k_hw_set_interrupts(sc->sc_ah, 0); if (!(sc->sc_flags & SC_OP_INVALID)) { - ath_draintxq(sc, false); + ath_drain_all_txq(sc, false); ath_stoprecv(sc); ath9k_hw_phy_disable(sc->sc_ah); } else sc->rx.rxlink = NULL; #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) - if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); #endif /* disable HAL and put h/w to sleep */ @@ -2058,136 +2173,227 @@ static void ath9k_stop(struct ieee80211_hw *hw) sc->sc_flags |= SC_OP_INVALID; + mutex_unlock(&sc->mutex); + DPRINTF(sc, ATH_DBG_CONFIG, "Driver halt\n"); } static int ath9k_add_interface(struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf) { - struct ath_softc *sc = hw->priv; - struct ath_vap *avp = (void *)conf->vif->drv_priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + struct ath_vif *avp = (void *)conf->vif->drv_priv; enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; + int ret = 0; - /* Support only vap for now */ + mutex_lock(&sc->mutex); - if (sc->sc_nvaps) - return -ENOBUFS; + if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) && + sc->nvifs > 0) { + ret = -ENOBUFS; + goto out; + } switch (conf->type) { case NL80211_IFTYPE_STATION: ic_opmode = NL80211_IFTYPE_STATION; break; case NL80211_IFTYPE_ADHOC: + if (sc->nbcnvifs >= ATH_BCBUF) { + ret = -ENOBUFS; + goto out; + } ic_opmode = NL80211_IFTYPE_ADHOC; break; case NL80211_IFTYPE_AP: + if (sc->nbcnvifs >= ATH_BCBUF) { + ret = -ENOBUFS; + goto out; + } ic_opmode = NL80211_IFTYPE_AP; break; default: DPRINTF(sc, ATH_DBG_FATAL, "Interface type %d not yet supported\n", conf->type); - return -EOPNOTSUPP; + ret = -EOPNOTSUPP; + goto out; } - DPRINTF(sc, ATH_DBG_CONFIG, "Attach a VAP of type: %d\n", ic_opmode); + DPRINTF(sc, ATH_DBG_CONFIG, "Attach a VIF of type: %d\n", ic_opmode); - /* Set the VAP opmode */ + /* Set the VIF opmode */ avp->av_opmode = ic_opmode; avp->av_bslot = -1; - if (ic_opmode == NL80211_IFTYPE_AP) - ath9k_hw_set_tsfadjust(sc->sc_ah, 1); + sc->nvifs++; + + if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) + ath9k_set_bssid_mask(hw); - sc->sc_vaps[0] = conf->vif; - sc->sc_nvaps++; + if (sc->nvifs > 1) + goto out; /* skip global settings for secondary vif */ + + if (ic_opmode == NL80211_IFTYPE_AP) { + ath9k_hw_set_tsfadjust(sc->sc_ah, 1); + sc->sc_flags |= SC_OP_TSF_RESET; + } /* Set the device opmode */ - sc->sc_ah->ah_opmode = ic_opmode; + sc->sc_ah->opmode = ic_opmode; + + /* + * Enable MIB interrupts when there are hardware phy counters. + * Note we only do this (at the moment) for station mode. + */ + if ((conf->type == NL80211_IFTYPE_STATION) || + (conf->type == NL80211_IFTYPE_ADHOC)) { + if (ath9k_hw_phycounters(sc->sc_ah)) + sc->imask |= ATH9K_INT_MIB; + sc->imask |= ATH9K_INT_TSFOOR; + } + + /* + * 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. + */ + if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_ENHANCEDPM) && + (conf->type == NL80211_IFTYPE_STATION) && + !sc->config.swBeaconProcess) + sc->imask |= ATH9K_INT_TIM; + + ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); if (conf->type == NL80211_IFTYPE_AP) { /* TODO: is this a suitable place to start ANI for AP mode? */ /* Start ANI */ - mod_timer(&sc->sc_ani.timer, + mod_timer(&sc->ani.timer, jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); } - return 0; +out: + mutex_unlock(&sc->mutex); + return ret; } static void ath9k_remove_interface(struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf) { - struct ath_softc *sc = hw->priv; - struct ath_vap *avp = (void *)conf->vif->drv_priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + struct ath_vif *avp = (void *)conf->vif->drv_priv; + int i; DPRINTF(sc, ATH_DBG_CONFIG, "Detach Interface\n"); + mutex_lock(&sc->mutex); + /* Stop ANI */ - del_timer_sync(&sc->sc_ani.timer); + del_timer_sync(&sc->ani.timer); /* Reclaim beacon resources */ - if (sc->sc_ah->ah_opmode == NL80211_IFTYPE_AP || - sc->sc_ah->ah_opmode == NL80211_IFTYPE_ADHOC) { + if (sc->sc_ah->opmode == NL80211_IFTYPE_AP || + sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) { ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); ath_beacon_return(sc, avp); } sc->sc_flags &= ~SC_OP_BEACONS; - sc->sc_vaps[0] = NULL; - sc->sc_nvaps--; + for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { + if (sc->beacon.bslot[i] == conf->vif) { + printk(KERN_DEBUG "%s: vif had allocated beacon " + "slot\n", __func__); + sc->beacon.bslot[i] = NULL; + sc->beacon.bslot_aphy[i] = NULL; + } + } + + sc->nvifs--; + + mutex_unlock(&sc->mutex); } static int ath9k_config(struct ieee80211_hw *hw, u32 changed) { - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; struct ieee80211_conf *conf = &hw->conf; mutex_lock(&sc->mutex); - if (changed & (IEEE80211_CONF_CHANGE_CHANNEL | - IEEE80211_CONF_CHANGE_HT)) { - struct ieee80211_channel *curchan = hw->conf.channel; - int pos; - - DPRINTF(sc, ATH_DBG_CONFIG, "Set channel: %d MHz\n", - curchan->center_freq); - pos = ath_get_channel(sc, curchan); - if (pos == -1) { - DPRINTF(sc, ATH_DBG_FATAL, "Invalid channel: %d\n", - curchan->center_freq); - mutex_unlock(&sc->mutex); - return -EINVAL; + if (changed & IEEE80211_CONF_CHANGE_PS) { + if (conf->flags & IEEE80211_CONF_PS) { + if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { + sc->imask |= ATH9K_INT_TIM_TIMER; + ath9k_hw_set_interrupts(sc->sc_ah, + sc->imask); + } + ath9k_hw_setrxabort(sc->sc_ah, 1); + ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); + } else { + ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); + ath9k_hw_setrxabort(sc->sc_ah, 0); + sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON; + if (sc->imask & ATH9K_INT_TIM_TIMER) { + sc->imask &= ~ATH9K_INT_TIM_TIMER; + ath9k_hw_set_interrupts(sc->sc_ah, + sc->imask); + } } + } - sc->tx_chan_width = ATH9K_HT_MACMODE_20; - sc->sc_ah->ah_channels[pos].chanmode = - (curchan->band == IEEE80211_BAND_2GHZ) ? - CHANNEL_G : CHANNEL_A; + if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { + struct ieee80211_channel *curchan = hw->conf.channel; + int pos = curchan->hw_value; - if (conf->ht.enabled) { - if (conf->ht.channel_type == NL80211_CHAN_HT40PLUS || - conf->ht.channel_type == NL80211_CHAN_HT40MINUS) - sc->tx_chan_width = ATH9K_HT_MACMODE_2040; + aphy->chan_idx = pos; + aphy->chan_is_ht = conf_is_ht(conf); - sc->sc_ah->ah_channels[pos].chanmode = - ath_get_extchanmode(sc, curchan, - conf->ht.channel_type); + if (aphy->state == ATH_WIPHY_SCAN || + aphy->state == ATH_WIPHY_ACTIVE) + ath9k_wiphy_pause_all_forced(sc, aphy); + else { + /* + * Do not change operational channel based on a paused + * wiphy changes. + */ + goto skip_chan_change; } - ath_update_chainmask(sc, conf->ht.enabled); + DPRINTF(sc, ATH_DBG_CONFIG, "Set channel: %d MHz\n", + curchan->center_freq); + + /* XXX: remove me eventualy */ + ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); + + ath_update_chainmask(sc, conf_is_ht(conf)); - if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0) { + if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n"); mutex_unlock(&sc->mutex); return -EINVAL; } } +skip_chan_change: if (changed & IEEE80211_CONF_CHANGE_POWER) - sc->sc_config.txpowlimit = 2 * conf->power_level; + sc->config.txpowlimit = 2 * conf->power_level; + + /* + * The HW TSF has to be reset when the beacon interval changes. + * We set the flag here, and ath_beacon_config_ap() would take this + * into account when it gets called through the subsequent + * config_interface() call - with IFCC_BEACON in the changed field. + */ + + if (changed & IEEE80211_CONF_CHANGE_BEACON_INTERVAL) + sc->sc_flags |= SC_OP_TSF_RESET; mutex_unlock(&sc->mutex); + return 0; } @@ -2195,19 +2401,24 @@ static int ath9k_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_if_conf *conf) { - struct ath_softc *sc = hw->priv; - struct ath_hal *ah = sc->sc_ah; - struct ath_vap *avp = (void *)vif->drv_priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + struct ath_hw *ah = sc->sc_ah; + struct ath_vif *avp = (void *)vif->drv_priv; u32 rfilt = 0; int error, i; + mutex_lock(&sc->mutex); + /* TODO: Need to decide which hw opmode to use for multi-interface * cases */ if (vif->type == NL80211_IFTYPE_AP && - ah->ah_opmode != NL80211_IFTYPE_AP) { - ah->ah_opmode = NL80211_IFTYPE_STATION; + ah->opmode != NL80211_IFTYPE_AP) { + ah->opmode = NL80211_IFTYPE_STATION; ath9k_hw_setopmode(ah); - ath9k_hw_write_associd(ah, sc->sc_myaddr, 0); + memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN); + sc->curaid = 0; + ath9k_hw_write_associd(sc); /* Request full reset to get hw opmode changed properly */ sc->sc_flags |= SC_OP_FULL_RESET; } @@ -2218,17 +2429,17 @@ static int ath9k_config_interface(struct ieee80211_hw *hw, case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_ADHOC: /* Set BSSID */ - memcpy(sc->sc_curbssid, conf->bssid, ETH_ALEN); - sc->sc_curaid = 0; - ath9k_hw_write_associd(sc->sc_ah, sc->sc_curbssid, - sc->sc_curaid); + memcpy(sc->curbssid, conf->bssid, ETH_ALEN); + memcpy(avp->bssid, conf->bssid, ETH_ALEN); + sc->curaid = 0; + ath9k_hw_write_associd(sc); /* Set aggregation protection mode parameters */ - sc->sc_config.ath_aggr_prot = 0; + sc->config.ath_aggr_prot = 0; DPRINTF(sc, ATH_DBG_CONFIG, "RX filter 0x%x bssid %pM aid 0x%x\n", - rfilt, sc->sc_curbssid, sc->sc_curaid); + rfilt, sc->curbssid, sc->curaid); /* need to reconfigure the beacon */ sc->sc_flags &= ~SC_OP_BEACONS ; @@ -2239,24 +2450,29 @@ static int ath9k_config_interface(struct ieee80211_hw *hw, } } - if ((conf->changed & IEEE80211_IFCC_BEACON) && - ((vif->type == NL80211_IFTYPE_ADHOC) || - (vif->type == NL80211_IFTYPE_AP))) { - /* - * Allocate and setup the beacon frame. - * - * Stop any previous beacon DMA. This may be - * necessary, for example, when an ibss merge - * causes reconfiguration; we may be called - * with beacon transmission active. - */ - ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); + if ((vif->type == NL80211_IFTYPE_ADHOC) || + (vif->type == NL80211_IFTYPE_AP)) { + if ((conf->changed & IEEE80211_IFCC_BEACON) || + (conf->changed & IEEE80211_IFCC_BEACON_ENABLED && + conf->enable_beacon)) { + /* + * Allocate and setup the beacon frame. + * + * Stop any previous beacon DMA. This may be + * necessary, for example, when an ibss merge + * causes reconfiguration; we may be called + * with beacon transmission active. + */ + ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); - error = ath_beacon_alloc(sc, 0); - if (error != 0) - return error; + error = ath_beacon_alloc(aphy, vif); + if (error != 0) { + mutex_unlock(&sc->mutex); + return error; + } - ath_beacon_sync(sc, 0); + ath_beacon_config(sc, vif); + } } /* Check for WLAN_CAPABILITY_PRIVACY ? */ @@ -2265,13 +2481,15 @@ static int ath9k_config_interface(struct ieee80211_hw *hw, if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i)) ath9k_hw_keysetmac(sc->sc_ah, (u16)i, - sc->sc_curbssid); + sc->curbssid); } /* Only legacy IBSS for now */ if (vif->type == NL80211_IFTYPE_ADHOC) ath_update_chainmask(sc, 0); + mutex_unlock(&sc->mutex); + return 0; } @@ -2290,7 +2508,8 @@ static void ath9k_configure_filter(struct ieee80211_hw *hw, int mc_count, struct dev_mc_list *mclist) { - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; u32 rfilt; changed_flags &= SUPPORTED_FILTERS; @@ -2300,11 +2519,6 @@ static void ath9k_configure_filter(struct ieee80211_hw *hw, rfilt = ath_calcrxfilter(sc); ath9k_hw_setrxfilter(sc->sc_ah, rfilt); - if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { - if (*total_flags & FIF_BCN_PRBRESP_PROMISC) - ath9k_hw_write_associd(sc->sc_ah, ath_bcast_mac, 0); - } - DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", sc->rx.rxfilter); } @@ -2313,7 +2527,8 @@ static void ath9k_sta_notify(struct ieee80211_hw *hw, enum sta_notify_cmd cmd, struct ieee80211_sta *sta) { - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; switch (cmd) { case STA_NOTIFY_ADD: @@ -2327,17 +2542,19 @@ static void ath9k_sta_notify(struct ieee80211_hw *hw, } } -static int ath9k_conf_tx(struct ieee80211_hw *hw, - u16 queue, +static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, const struct ieee80211_tx_queue_params *params) { - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; struct ath9k_tx_queue_info qi; int ret = 0, qnum; if (queue >= WME_NUM_AC) return 0; + mutex_lock(&sc->mutex); + qi.tqi_aifs = params->aifs; qi.tqi_cwmin = params->cw_min; qi.tqi_cwmax = params->cw_max; @@ -2354,29 +2571,39 @@ static int ath9k_conf_tx(struct ieee80211_hw *hw, if (ret) DPRINTF(sc, ATH_DBG_FATAL, "TXQ Update failed\n"); + mutex_unlock(&sc->mutex); + return ret; } static int ath9k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, - const u8 *local_addr, - const u8 *addr, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, struct ieee80211_key_conf *key) { - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; int ret = 0; + if (modparam_nohwcrypt) + return -ENOSPC; + + mutex_lock(&sc->mutex); + ath9k_ps_wakeup(sc); DPRINTF(sc, ATH_DBG_KEYCACHE, "Set HW Key\n"); switch (cmd) { case SET_KEY: - ret = ath_key_config(sc, addr, key); + ret = ath_key_config(sc, vif, sta, key); if (ret >= 0) { key->hw_key_idx = ret; /* push IV and Michael MIC generation to stack */ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; if (key->alg == ALG_TKIP) key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; + if (sc->sc_ah->sw_mgmt_crypto && key->alg == ALG_CCMP) + key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; ret = 0; } break; @@ -2387,6 +2614,9 @@ static int ath9k_set_key(struct ieee80211_hw *hw, ret = -EINVAL; } + ath9k_ps_restore(sc); + mutex_unlock(&sc->mutex); + return ret; } @@ -2395,7 +2625,10 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_bss_conf *bss_conf, u32 changed) { - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + + mutex_lock(&sc->mutex); if (changed & BSS_CHANGED_ERP_PREAMBLE) { DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", @@ -2421,33 +2654,50 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, bss_conf->assoc); ath9k_bss_assoc_info(sc, vif, bss_conf); } + + mutex_unlock(&sc->mutex); } static u64 ath9k_get_tsf(struct ieee80211_hw *hw) { u64 tsf; - struct ath_softc *sc = hw->priv; - struct ath_hal *ah = sc->sc_ah; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; - tsf = ath9k_hw_gettsf64(ah); + mutex_lock(&sc->mutex); + tsf = ath9k_hw_gettsf64(sc->sc_ah); + mutex_unlock(&sc->mutex); return tsf; } +static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) +{ + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + + mutex_lock(&sc->mutex); + ath9k_hw_settsf64(sc->sc_ah, tsf); + mutex_unlock(&sc->mutex); +} + static void ath9k_reset_tsf(struct ieee80211_hw *hw) { - struct ath_softc *sc = hw->priv; - struct ath_hal *ah = sc->sc_ah; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; - ath9k_hw_reset_tsf(ah); + mutex_lock(&sc->mutex); + ath9k_hw_reset_tsf(sc->sc_ah); + mutex_unlock(&sc->mutex); } static int ath9k_ampdu_action(struct ieee80211_hw *hw, - enum ieee80211_ampdu_mlme_action action, - struct ieee80211_sta *sta, - u16 tid, u16 *ssn) + enum ieee80211_ampdu_mlme_action action, + struct ieee80211_sta *sta, + u16 tid, u16 *ssn) { - struct ath_softc *sc = hw->priv; + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; int ret = 0; switch (action) { @@ -2483,7 +2733,41 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw, return ret; } -static struct ieee80211_ops ath9k_ops = { +static void ath9k_sw_scan_start(struct ieee80211_hw *hw) +{ + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + + if (ath9k_wiphy_scanning(sc)) { + printk(KERN_DEBUG "ath9k: Two wiphys trying to scan at the " + "same time\n"); + /* + * Do not allow the concurrent scanning state for now. This + * could be improved with scanning control moved into ath9k. + */ + return; + } + + aphy->state = ATH_WIPHY_SCAN; + ath9k_wiphy_pause_all_forced(sc, aphy); + + mutex_lock(&sc->mutex); + sc->sc_flags |= SC_OP_SCANNING; + mutex_unlock(&sc->mutex); +} + +static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) +{ + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + + mutex_lock(&sc->mutex); + aphy->state = ATH_WIPHY_ACTIVE; + sc->sc_flags &= ~SC_OP_SCANNING; + mutex_unlock(&sc->mutex); +} + +struct ieee80211_ops ath9k_ops = { .tx = ath9k_tx, .start = ath9k_start, .stop = ath9k_stop, @@ -2497,8 +2781,11 @@ static struct ieee80211_ops ath9k_ops = { .bss_info_changed = ath9k_bss_info_changed, .set_key = ath9k_set_key, .get_tsf = ath9k_get_tsf, + .set_tsf = ath9k_set_tsf, .reset_tsf = ath9k_reset_tsf, .ampdu_action = ath9k_ampdu_action, + .sw_scan_start = ath9k_sw_scan_start, + .sw_scan_complete = ath9k_sw_scan_complete, }; static struct { @@ -2527,7 +2814,7 @@ static struct { /* * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. */ -static const char * +const char * ath_mac_bb_name(u32 mac_bb_version) { int i; @@ -2544,7 +2831,7 @@ ath_mac_bb_name(u32 mac_bb_version) /* * Return the RF name. "????" is returned if the RF is unknown. */ -static const char * +const char * ath_rf_name(u16 rf_version) { int i; @@ -2558,254 +2845,62 @@ ath_rf_name(u16 rf_version) return "????"; } -static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) -{ - void __iomem *mem; - struct ath_softc *sc; - struct ieee80211_hw *hw; - u8 csz; - u32 val; - int ret = 0; - struct ath_hal *ah; - - if (pci_enable_device(pdev)) - return -EIO; - - ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK); - - if (ret) { - printk(KERN_ERR "ath9k: 32-bit DMA not available\n"); - goto bad; - } - - ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); - - if (ret) { - printk(KERN_ERR "ath9k: 32-bit DMA consistent " - "DMA enable failed\n"); - goto bad; - } - - /* - * Cache line size is used to size and align various - * structures used to communicate with the hardware. - */ - pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &csz); - if (csz == 0) { - /* - * Linux 2.4.18 (at least) writes the cache line size - * register as a 16-bit wide register which is wrong. - * We must have this setup properly for rx buffer - * DMA to work so force a reasonable value here if it - * comes up zero. - */ - csz = L1_CACHE_BYTES / sizeof(u32); - pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, csz); - } - /* - * The default setting of latency timer yields poor results, - * set it to the value used by other systems. It may be worth - * tweaking this setting more. - */ - pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xa8); - - pci_set_master(pdev); - - /* - * Disable the RETRY_TIMEOUT register (0x41) to keep - * PCI Tx retries from interfering with C3 CPU state. - */ - pci_read_config_dword(pdev, 0x40, &val); - if ((val & 0x0000ff00) != 0) - pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); - - ret = pci_request_region(pdev, 0, "ath9k"); - if (ret) { - dev_err(&pdev->dev, "PCI memory region reserve error\n"); - ret = -ENODEV; - goto bad; - } - - mem = pci_iomap(pdev, 0, 0); - if (!mem) { - printk(KERN_ERR "PCI memory map error\n") ; - ret = -EIO; - goto bad1; - } - - hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops); - if (hw == NULL) { - printk(KERN_ERR "ath_pci: no memory for ieee80211_hw\n"); - goto bad2; - } - - SET_IEEE80211_DEV(hw, &pdev->dev); - pci_set_drvdata(pdev, hw); - - sc = hw->priv; - sc->hw = hw; - sc->pdev = pdev; - sc->mem = mem; - - if (ath_attach(id->device, sc) != 0) { - ret = -ENODEV; - goto bad3; - } - - /* setup interrupt service routine */ - - if (request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath", sc)) { - printk(KERN_ERR "%s: request_irq failed\n", - wiphy_name(hw->wiphy)); - ret = -EIO; - goto bad4; - } - - ah = sc->sc_ah; - printk(KERN_INFO - "%s: Atheros AR%s MAC/BB Rev:%x " - "AR%s RF Rev:%x: mem=0x%lx, irq=%d\n", - wiphy_name(hw->wiphy), - ath_mac_bb_name(ah->ah_macVersion), - ah->ah_macRev, - ath_rf_name((ah->ah_analog5GhzRev & AR_RADIO_SREV_MAJOR)), - ah->ah_phyRev, - (unsigned long)mem, pdev->irq); - - return 0; -bad4: - ath_detach(sc); -bad3: - ieee80211_free_hw(hw); -bad2: - pci_iounmap(pdev, mem); -bad1: - pci_release_region(pdev, 0); -bad: - pci_disable_device(pdev); - return ret; -} - -static void ath_pci_remove(struct pci_dev *pdev) -{ - struct ieee80211_hw *hw = pci_get_drvdata(pdev); - struct ath_softc *sc = hw->priv; - - ath_detach(sc); - if (pdev->irq) - free_irq(pdev->irq, sc); - pci_iounmap(pdev, sc->mem); - pci_release_region(pdev, 0); - pci_disable_device(pdev); - ieee80211_free_hw(hw); -} - -#ifdef CONFIG_PM - -static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state) -{ - struct ieee80211_hw *hw = pci_get_drvdata(pdev); - struct ath_softc *sc = hw->priv; - - ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); - -#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) - if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) - cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); -#endif - - pci_save_state(pdev); - pci_disable_device(pdev); - pci_set_power_state(pdev, 3); - - return 0; -} - -static int ath_pci_resume(struct pci_dev *pdev) -{ - struct ieee80211_hw *hw = pci_get_drvdata(pdev); - struct ath_softc *sc = hw->priv; - u32 val; - int err; - - err = pci_enable_device(pdev); - if (err) - return err; - pci_restore_state(pdev); - /* - * Suspend/Resume resets the PCI configuration space, so we have to - * re-disable the RETRY_TIMEOUT register (0x41) to keep - * PCI Tx retries from interfering with C3 CPU state - */ - pci_read_config_dword(pdev, 0x40, &val); - if ((val & 0x0000ff00) != 0) - pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); - - /* Enable LED */ - ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN, - AR_GPIO_OUTPUT_MUX_AS_OUTPUT); - ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); - -#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) - /* - * check the h/w rfkill state on resume - * and start the rfkill poll timer - */ - if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT) - queue_delayed_work(sc->hw->workqueue, - &sc->rf_kill.rfkill_poll, 0); -#endif - - return 0; -} - -#endif /* CONFIG_PM */ - -MODULE_DEVICE_TABLE(pci, ath_pci_id_table); - -static struct pci_driver ath_pci_driver = { - .name = "ath9k", - .id_table = ath_pci_id_table, - .probe = ath_pci_probe, - .remove = ath_pci_remove, -#ifdef CONFIG_PM - .suspend = ath_pci_suspend, - .resume = ath_pci_resume, -#endif /* CONFIG_PM */ -}; - -static int __init init_ath_pci(void) +static int __init ath9k_init(void) { int error; - printk(KERN_INFO "%s: %s\n", dev_info, ATH_PCI_VERSION); - /* Register rate control algorithm */ error = ath_rate_control_register(); if (error != 0) { printk(KERN_ERR - "Unable to register rate control algorithm: %d\n", + "ath9k: Unable to register rate control " + "algorithm: %d\n", error); - ath_rate_control_unregister(); - return error; + goto err_out; + } + + error = ath9k_debug_create_root(); + if (error) { + printk(KERN_ERR + "ath9k: Unable to create debugfs root: %d\n", + error); + goto err_rate_unregister; } - if (pci_register_driver(&ath_pci_driver) < 0) { + error = ath_pci_init(); + if (error < 0) { printk(KERN_ERR - "ath_pci: No devices found, driver not installed.\n"); - ath_rate_control_unregister(); - pci_unregister_driver(&ath_pci_driver); - return -ENODEV; + "ath9k: No PCI devices found, driver not installed.\n"); + error = -ENODEV; + goto err_remove_root; + } + + error = ath_ahb_init(); + if (error < 0) { + error = -ENODEV; + goto err_pci_exit; } return 0; + + err_pci_exit: + ath_pci_exit(); + + err_remove_root: + ath9k_debug_remove_root(); + err_rate_unregister: + ath_rate_control_unregister(); + err_out: + return error; } -module_init(init_ath_pci); +module_init(ath9k_init); -static void __exit exit_ath_pci(void) +static void __exit ath9k_exit(void) { + ath_ahb_exit(); + ath_pci_exit(); + ath9k_debug_remove_root(); ath_rate_control_unregister(); - pci_unregister_driver(&ath_pci_driver); printk(KERN_INFO "%s: Driver unloaded\n", dev_info); } -module_exit(exit_ath_pci); +module_exit(ath9k_exit); |