diff options
Diffstat (limited to 'drivers/net/wireless/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath9k/main.c | 263 |
1 files changed, 142 insertions, 121 deletions
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index b494a0d..561a2c3 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -28,6 +28,77 @@ MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); MODULE_LICENSE("Dual BSD/GPL"); +/* 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 */ +}; + +/* 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 void ath_cache_conf_rate(struct ath_softc *sc, struct ieee80211_conf *conf) { @@ -152,75 +223,6 @@ static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band) } } -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; - c->chan = &chan_2ghz[a]; - - 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; - c->chan = &chan_5ghz[a]; - - 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 @@ -582,19 +584,6 @@ irqreturn_t ath_isr(int irq, void *dev) 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) @@ -1349,16 +1338,12 @@ static int ath_init(u16 devid, struct ath_softc *sc) for (i = 0; i < sc->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; - /* Setup rate tables */ ath_rate_attach(sc); @@ -1490,18 +1475,20 @@ static int ath_init(u16 devid, struct ath_softc *sc) /* 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]; + 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->ah_caps.hw_caps & ATH9K_HW_CAP_BT_COEX) @@ -1550,6 +1537,9 @@ int ath_attach(u16 devid, struct ath_softc *sc) 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->max_rate_tries = ATH_11N_TXMAXTRY; @@ -1588,11 +1578,36 @@ int ath_attach(u16 devid, struct ath_softc *sc) goto detach; #endif + if (ath9k_is_world_regd(sc->sc_ah)) { + /* Anything applied here (prior to wiphy registratoin) gets + * saved on the wiphy orig_* parameters */ + const struct ieee80211_regdomain *regd = + ath9k_world_regdomain(sc->sc_ah); + hw->wiphy->custom_regulatory = true; + hw->wiphy->strict_regulatory = false; + wiphy_apply_custom_regulatory(sc->hw->wiphy, regd); + ath9k_reg_apply_radar_flags(hw->wiphy); + ath9k_reg_apply_world_flags(hw->wiphy, REGDOM_SET_BY_INIT); + } else { + /* This gets applied in the case of the absense of CRDA, + * its our own custom world regulatory domain, similar to + * cfg80211's but we enable passive scanning */ + const struct ieee80211_regdomain *regd = + ath9k_default_world_regdomain(); + wiphy_apply_custom_regulatory(sc->hw->wiphy, regd); + ath9k_reg_apply_radar_flags(hw->wiphy); + ath9k_reg_apply_world_flags(hw->wiphy, REGDOM_SET_BY_INIT); + } + error = ieee80211_register_hw(hw); + if (!ath9k_is_world_regd(sc->sc_ah)) + regulatory_hint(hw->wiphy, sc->sc_ah->alpha2); + /* Initialize LED control */ ath_init_leds(sc); + return 0; detach: ath_detach(sc); @@ -1818,6 +1833,37 @@ 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 */ +static void ath9k_update_ichannel(struct ath_softc *sc, + struct ath9k_channel *ichan) +{ + struct ieee80211_hw *hw = sc->hw; + 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 */ /**********************/ @@ -1834,16 +1880,10 @@ static int ath9k_start(struct ieee80211_hw *hw) /* setup initial channel */ - pos = ath_get_channel(sc, curchan); - if (pos == -1) { - DPRINTF(sc, ATH_DBG_FATAL, "Invalid channel: %d\n", curchan->center_freq); - return -EINVAL; - } + pos = curchan->hw_value; - 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]; + ath9k_update_ichannel(sc, init_channel); /* Reset SERDES registers */ ath9k_hw_configpcipowersave(sc->sc_ah, 0); @@ -2127,32 +2167,13 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { struct ieee80211_channel *curchan = hw->conf.channel; - int pos; + int pos = curchan->hw_value; 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; - } - - 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 (conf_is_ht(conf)) { - if (conf_is_ht40(conf)) - sc->tx_chan_width = ATH9K_HT_MACMODE_2040; - - sc->sc_ah->ah_channels[pos].chanmode = - ath_get_extchanmode(sc, curchan, - conf->channel_type); - } + /* XXX: remove me eventualy */ + ath9k_update_ichannel(sc, &sc->sc_ah->ah_channels[pos]); ath_update_chainmask(sc, conf_is_ht(conf)); |
