diff options
Diffstat (limited to 'drivers/net/wireless/ath5k/base.c')
-rw-r--r-- | drivers/net/wireless/ath5k/base.c | 346 |
1 files changed, 191 insertions, 155 deletions
diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index bef967ce34a6..52e55f67b735 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -240,6 +240,8 @@ static int ath5k_chan_set(struct ath5k_softc *sc, static void ath5k_setcurmode(struct ath5k_softc *sc, unsigned int mode); static void ath5k_mode_setup(struct ath5k_softc *sc); +static void ath5k_set_total_hw_rates(struct ath5k_softc *sc); + /* Descriptor setup */ static int ath5k_desc_alloc(struct ath5k_softc *sc, struct pci_dev *pdev); @@ -515,12 +517,12 @@ ath5k_pci_probe(struct pci_dev *pdev, /* Single chip radio (!RF5111) */ if(sc->ah->ah_radio_5ghz_revision && !sc->ah->ah_radio_2ghz_revision) { /* No 5GHz support -> report 2GHz radio */ - if(!test_bit(MODE_IEEE80211A, sc->ah->ah_capabilities.cap_mode)){ + if(!test_bit(AR5K_MODE_11A, sc->ah->ah_capabilities.cap_mode)){ ATH5K_INFO(sc, "RF%s 2GHz radio found (0x%x)\n", ath5k_chip_name(AR5K_VERSION_RAD,sc->ah->ah_radio_5ghz_revision), sc->ah->ah_radio_5ghz_revision); /* No 2GHz support (5110 and some 5Ghz only cards) -> report 5Ghz radio */ - } else if(!test_bit(MODE_IEEE80211B, sc->ah->ah_capabilities.cap_mode)){ + } else if(!test_bit(AR5K_MODE_11B, sc->ah->ah_capabilities.cap_mode)){ ATH5K_INFO(sc, "RF%s 5GHz radio found (0x%x)\n", ath5k_chip_name(AR5K_VERSION_RAD,sc->ah->ah_radio_5ghz_revision), sc->ah->ah_radio_5ghz_revision); @@ -693,11 +695,14 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw) goto err; } + /* Set *_rates so we can map hw rate index */ + ath5k_set_total_hw_rates(sc); + /* NB: setup here so ath5k_rate_update is happy */ - if (test_bit(MODE_IEEE80211A, ah->ah_modes)) - ath5k_setcurmode(sc, MODE_IEEE80211A); + if (test_bit(AR5K_MODE_11A, ah->ah_modes)) + ath5k_setcurmode(sc, AR5K_MODE_11A); else - ath5k_setcurmode(sc, MODE_IEEE80211B); + ath5k_setcurmode(sc, AR5K_MODE_11B); /* * Allocate tx+rx descriptors and populate the lists. @@ -837,12 +842,9 @@ ath5k_copy_rates(struct ieee80211_rate *rates, return 0; for (i = 0, count = 0; i < rt->rate_count && max > 0; i++) { - if (!rt->rates[i].valid) - continue; - rates->rate = rt->rates[i].rate_kbps / 100; - rates->val = rt->rates[i].rate_code; - rates->flags = rt->rates[i].modulation; - rates++; + rates[count].bitrate = rt->rates[i].rate_kbps / 100; + rates[count].hw_value = rt->rates[i].rate_code; + rates[count].flags = rt->rates[i].modulation; count++; max--; } @@ -856,43 +858,22 @@ ath5k_copy_channels(struct ath5k_hw *ah, unsigned int mode, unsigned int max) { - static const struct { unsigned int mode, mask, chan; } map[] = { - [MODE_IEEE80211A] = { CHANNEL_OFDM, CHANNEL_OFDM | CHANNEL_TURBO, CHANNEL_A }, - [MODE_ATHEROS_TURBO] = { CHANNEL_OFDM|CHANNEL_TURBO, CHANNEL_OFDM | CHANNEL_TURBO, CHANNEL_T }, - [MODE_IEEE80211B] = { CHANNEL_CCK, CHANNEL_CCK, CHANNEL_B }, - [MODE_IEEE80211G] = { CHANNEL_OFDM, CHANNEL_OFDM, CHANNEL_G }, - [MODE_ATHEROS_TURBOG] = { CHANNEL_OFDM | CHANNEL_TURBO, CHANNEL_OFDM | CHANNEL_TURBO, CHANNEL_TG }, - }; - static const struct ath5k_regchannel chans_2ghz[] = - IEEE80211_CHANNELS_2GHZ; - static const struct ath5k_regchannel chans_5ghz[] = - IEEE80211_CHANNELS_5GHZ; - const struct ath5k_regchannel *chans; - enum ath5k_regdom dmn; - unsigned int i, count, size, chfreq, all, f, ch; + unsigned int i, count, size, chfreq, freq, ch; if (!test_bit(mode, ah->ah_modes)) return 0; - all = ah->ah_regdomain == DMN_DEFAULT || CHAN_DEBUG == 1; - switch (mode) { - case MODE_IEEE80211A: - case MODE_ATHEROS_TURBO: + case AR5K_MODE_11A: + case AR5K_MODE_11A_TURBO: /* 1..220, but 2GHz frequencies are filtered by check_channel */ - size = all ? 220 : ARRAY_SIZE(chans_5ghz); - chans = chans_5ghz; - dmn = ath5k_regdom2flag(ah->ah_regdomain, - IEEE80211_CHANNELS_5GHZ_MIN); + size = 220 ; chfreq = CHANNEL_5GHZ; break; - case MODE_IEEE80211B: - case MODE_IEEE80211G: - case MODE_ATHEROS_TURBOG: - size = all ? 26 : ARRAY_SIZE(chans_2ghz); - chans = chans_2ghz; - dmn = ath5k_regdom2flag(ah->ah_regdomain, - IEEE80211_CHANNELS_2GHZ_MIN); + case AR5K_MODE_11B: + case AR5K_MODE_11G: + case AR5K_MODE_11G_TURBO: + size = 26; chfreq = CHANNEL_2GHZ; break; default: @@ -901,25 +882,26 @@ ath5k_copy_channels(struct ath5k_hw *ah, } for (i = 0, count = 0; i < size && max > 0; i++) { - ch = all ? i + 1 : chans[i].chan; - f = ath5k_ieee2mhz(ch); - /* Check if channel is supported by the chipset */ - if (!ath5k_channel_ok(ah, f, chfreq)) - continue; + ch = i + 1 ; + freq = ath5k_ieee2mhz(ch); - /* Match regulation domain */ - if (!all && !(IEEE80211_DMN(chans[i].domain) & - IEEE80211_DMN(dmn))) + /* Check if channel is supported by the chipset */ + if (!ath5k_channel_ok(ah, freq, chfreq)) continue; - if (!all && (chans[i].mode & map[mode].mask) != map[mode].mode) - continue; + /* Write channel info and increment counter */ + channels[count].center_freq = freq; + + if((mode == AR5K_MODE_11A) || + (mode == AR5K_MODE_11G)){ + channels[count].hw_value = chfreq|CHANNEL_OFDM; + } else if((mode == AR5K_MODE_11A_TURBO) || + (mode == AR5K_MODE_11G_TURBO)){ + channels[count].hw_value = chfreq|CHANNEL_OFDM|CHANNEL_TURBO; + }if(mode == AR5K_MODE_11B) { + channels[count].hw_value = CHANNEL_B; + } - /* Write channel and increment counter */ - channels->chan = ch; - channels->freq = f; - channels->val = map[mode].chan; - channels++; count++; max--; } @@ -927,95 +909,76 @@ ath5k_copy_channels(struct ath5k_hw *ah, return count; } -/* Only tries to register modes our EEPROM says it can support */ -#define REGISTER_MODE(m) do { \ - ret = ath5k_register_mode(hw, m); \ - if (ret) \ - return ret; \ -} while (0) \ - -static inline int -ath5k_register_mode(struct ieee80211_hw *hw, u8 m) +static int +ath5k_getchannels(struct ieee80211_hw *hw) { struct ath5k_softc *sc = hw->priv; - struct ieee80211_hw_mode *modes = sc->modes; - unsigned int i; - int ret; + struct ath5k_hw *ah = sc->ah; + struct ieee80211_supported_band *sbands = sc->sbands; + const struct ath5k_rate_table *hw_rates; + unsigned int max_r, max_c, count_r, count_c; + int mode2g = AR5K_MODE_11G; - if (!test_bit(m, sc->ah->ah_capabilities.cap_mode)) - return 0; + BUILD_BUG_ON(ARRAY_SIZE(sc->sbands) < IEEE80211_NUM_BANDS); - for (i = 0; i < NUM_DRIVER_MODES; i++) { - if (modes[i].mode != m || !modes[i].num_channels) - continue; - ret = ieee80211_register_hwmode(hw, &modes[i]); - if (ret) { - ATH5K_ERR(sc, "can't register hwmode %u\n", m); - return ret; + max_r = ARRAY_SIZE(sc->rates); + max_c = ARRAY_SIZE(sc->channels); + count_r = count_c = 0; + + /* 2GHz band */ + if(!test_bit(AR5K_MODE_11G, sc->ah->ah_capabilities.cap_mode)){ + mode2g = AR5K_MODE_11B; + if(!test_bit(AR5K_MODE_11B, sc->ah->ah_capabilities.cap_mode)){ + mode2g = -1; } - return 0; } - BUG(); -} -static int -ath5k_getchannels(struct ieee80211_hw *hw) -{ - struct ath5k_softc *sc = hw->priv; - struct ath5k_hw *ah = sc->ah; - struct ieee80211_hw_mode *modes = sc->modes; - unsigned int i, max_r, max_c; - int ret; + if(mode2g > 0){ + struct ieee80211_supported_band *sband = &sbands[IEEE80211_BAND_2GHZ]; - BUILD_BUG_ON(ARRAY_SIZE(sc->modes) < 3); + sband->bitrates = sc->rates; + sband->channels = sc->channels; - /* The order here does not matter */ - modes[0].mode = MODE_IEEE80211G; - modes[1].mode = MODE_IEEE80211B; - modes[2].mode = MODE_IEEE80211A; + sband->band = IEEE80211_BAND_2GHZ; + sband->n_channels = ath5k_copy_channels(ah, sband->channels, + mode2g, max_c); - max_r = ARRAY_SIZE(sc->rates); - max_c = ARRAY_SIZE(sc->channels); + hw_rates = ath5k_hw_get_rate_table(ah, mode2g); + sband->n_bitrates = ath5k_copy_rates(sband->bitrates, + hw_rates,max_r); - for (i = 0; i < NUM_DRIVER_MODES; i++) { - struct ieee80211_hw_mode *mode = &modes[i]; - const struct ath5k_rate_table *hw_rates; + count_c = sband->n_channels; + count_r = sband->n_bitrates; - if (i == 0) { - modes[0].rates = sc->rates; - modes->channels = sc->channels; - } else { - struct ieee80211_hw_mode *prev_mode = &modes[i-1]; - int prev_num_r = prev_mode->num_rates; - int prev_num_c = prev_mode->num_channels; - mode->rates = &prev_mode->rates[prev_num_r]; - mode->channels = &prev_mode->channels[prev_num_c]; - } + hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband; + + max_r -= count_r; + max_c -= count_c; - hw_rates = ath5k_hw_get_rate_table(ah, mode->mode); - mode->num_rates = ath5k_copy_rates(mode->rates, hw_rates, - max_r); - mode->num_channels = ath5k_copy_channels(ah, mode->channels, - mode->mode, max_c); - max_r -= mode->num_rates; - max_c -= mode->num_channels; } - /* We try to register all modes this driver supports. We don't bother - * with MODE_IEEE80211B for AR5212 as MODE_IEEE80211G already accounts - * for that as per mac80211. Then, REGISTER_MODE() will will actually - * check the eeprom reading for more reliable capability information. - * Order matters here as per mac80211's latest preference. This will - * all hopefullly soon go away. */ + /* 5GHz band */ - REGISTER_MODE(MODE_IEEE80211G); - if (ah->ah_version != AR5K_AR5212) - REGISTER_MODE(MODE_IEEE80211B); - REGISTER_MODE(MODE_IEEE80211A); + if(test_bit(AR5K_MODE_11A, sc->ah->ah_capabilities.cap_mode)){ + struct ieee80211_supported_band *sband = &sbands[IEEE80211_BAND_5GHZ]; - ath5k_debug_dump_modes(sc, modes); + sband->bitrates = &sc->rates[count_r]; + sband->channels = &sc->channels[count_c]; - return ret; + sband->band = IEEE80211_BAND_5GHZ; + sband->n_channels = ath5k_copy_channels(ah, sband->channels, + AR5K_MODE_11A, max_c); + + hw_rates = ath5k_hw_get_rate_table(ah, AR5K_MODE_11A); + sband->n_bitrates = ath5k_copy_rates(sband->bitrates, + hw_rates,max_r); + + hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband; + } + +/* FIXME: ath5k_debug_dump_modes(sc, modes); */ + + return 0; } /* @@ -1030,11 +993,15 @@ ath5k_chan_set(struct ath5k_softc *sc, struct ieee80211_channel *chan) struct ath5k_hw *ah = sc->ah; int ret; - ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "%u (%u MHz) -> %u (%u MHz)\n", - sc->curchan->chan, sc->curchan->freq, - chan->chan, chan->freq); + ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "(%u MHz) -> (%u MHz)\n", + sc->curchan->center_freq, chan->center_freq); + + if (chan->center_freq != sc->curchan->center_freq || + chan->hw_value != sc->curchan->hw_value) { + + sc->curchan = chan; + sc->curband = &sc->sbands[chan->band]; - if (chan->freq != sc->curchan->freq || chan->val != sc->curchan->val) { /* * To switch channels clear any pending DMA operations; * wait long enough for the RX fifo to drain, reset the @@ -1044,13 +1011,13 @@ ath5k_chan_set(struct ath5k_softc *sc, struct ieee80211_channel *chan) ath5k_hw_set_intr(ah, 0); /* disable interrupts */ ath5k_txq_cleanup(sc); /* clear pending tx frames */ ath5k_rx_stop(sc); /* turn off frame recv */ - ret = ath5k_hw_reset(ah, sc->opmode, chan, true); + ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, true); if (ret) { - ATH5K_ERR(sc, "%s: unable to reset channel %u " - "(%u Mhz)\n", __func__, chan->chan, chan->freq); + ATH5K_ERR(sc, "%s: unable to reset channel " + "(%u Mhz)\n", __func__, chan->center_freq); return ret; } - sc->curchan = chan; + ath5k_hw_set_txpower_limit(sc->ah, 0); /* @@ -1081,6 +1048,9 @@ ath5k_chan_set(struct ath5k_softc *sc, struct ieee80211_channel *chan) return 0; } +/* + * TODO: CLEAN THIS !!! + */ static void ath5k_setcurmode(struct ath5k_softc *sc, unsigned int mode) { @@ -1121,10 +1091,6 @@ ath5k_setcurmode(struct ath5k_softc *sc, unsigned int mode) continue; } sc->hwmap[i].txflags = IEEE80211_RADIOTAP_F_DATAPAD; - if (SHPREAMBLE_FLAG(ix) || rt->rates[ix].modulation == - IEEE80211_RATE_OFDM) - sc->hwmap[i].txflags |= - IEEE80211_RADIOTAP_F_SHORTPRE; /* receive frames include FCS */ sc->hwmap[i].rxflags = sc->hwmap[i].txflags | IEEE80211_RADIOTAP_F_FCS; @@ -1142,6 +1108,12 @@ ath5k_setcurmode(struct ath5k_softc *sc, unsigned int mode) } sc->curmode = mode; + + if(mode == AR5K_MODE_11A){ + sc->curband = &sc->sbands[IEEE80211_BAND_5GHZ]; + } else { + sc->curband = &sc->sbands[IEEE80211_BAND_2GHZ]; + } } static void @@ -1164,6 +1136,72 @@ ath5k_mode_setup(struct ath5k_softc *sc) ATH5K_DBG(sc, ATH5K_DEBUG_MODE, "RX filter 0x%x\n", rfilt); } +/* + * Match the hw provided rate index (through descriptors) + * to an index for sc->curband->bitrates, so it can be used + * by the stack. + * + * This one is a little bit tricky but i think i'm right + * about this... + * + * We have 4 rate tables in the following order: + * XR (4 rates) + * 802.11a (8 rates) + * 802.11b (4 rates) + * 802.11g (12 rates) + * that make the hw rate table. + * + * Lets take a 5211 for example that supports a and b modes only. + * First comes the 802.11a table and then 802.11b (total 12 rates). + * When hw returns eg. 11 it points to the last 802.11b rate (11Mbit), + * if it returns 2 it points to the second 802.11a rate etc. + * + * Same goes for 5212 who has xr/a/b/g support (total 28 rates). + * First comes the XR table, then 802.11a, 802.11b and 802.11g. + * When hw returns eg. 27 it points to the last 802.11g rate (54Mbits) etc + */ +static void +ath5k_set_total_hw_rates(struct ath5k_softc *sc){ + + struct ath5k_hw *ah = sc->ah; + + if(test_bit(AR5K_MODE_11A, ah->ah_modes)) + sc->a_rates = 8; + + if(test_bit(AR5K_MODE_11B, ah->ah_modes)) + sc->b_rates = 4; + + if(test_bit(AR5K_MODE_11G, ah->ah_modes)) + sc->g_rates = 12; + + /* XXX: Need to see what what happens when + xr disable bits in eeprom are set */ + if(ah->ah_version >= AR5K_AR5212) + sc->xr_rates = 4; + +} + +static inline int +ath5k_hw_to_driver_rix(struct ath5k_softc *sc, int hw_rix){ + + int mac80211_rix; + + if(sc->curband->band == IEEE80211_BAND_2GHZ){ + /* We setup a g ratetable for both b/g modes */ + mac80211_rix = hw_rix - sc->b_rates - sc->a_rates - sc->xr_rates; + } else { + mac80211_rix = hw_rix - sc->xr_rates; + } + + /* Something went wrong, fallback to basic rate for this band */ + if((mac80211_rix >= sc->curband->n_bitrates) || + (mac80211_rix <= 0 )){ + mac80211_rix = 1; + } + + return mac80211_rix; +} + @@ -1268,7 +1306,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf, ret = ah->ah_setup_tx_desc(ah, ds, pktlen, ieee80211_get_hdrlen_from_skb(skb), AR5K_PKT_TYPE_NORMAL, - (ctl->power_level * 2), ctl->tx_rate, ctl->retry_limit, keyidx, 0, flags, 0, 0); + (sc->power_level * 2), ctl->tx_rate->hw_value, ctl->retry_limit, keyidx, 0, flags, 0, 0); if (ret) goto err_unmap; @@ -1791,9 +1829,8 @@ accept: rxs.mactime = ath5k_extend_tsf(sc->ah, ds->ds_rxstat.rs_tstamp); rxs.flag |= RX_FLAG_TSFT; - rxs.freq = sc->curchan->freq; - rxs.channel = sc->curchan->chan; - rxs.phymode = sc->curmode; + rxs.freq = sc->curchan->center_freq; + rxs.band = sc->curband->band; /* * signal quality: @@ -1811,7 +1848,7 @@ accept: rxs.signal = ds->ds_rxstat.rs_rssi * 100 / 64; rxs.antenna = ds->ds_rxstat.rs_antenna; - rxs.rate = ds->ds_rxstat.rs_rate; + rxs.rate_idx = ath5k_hw_to_driver_rix(sc,ds->ds_rxstat.rs_rate); rxs.flag |= ath5k_rx_decrypted(sc, ds, skb); ath5k_debug_dump_skb(sc, skb, "RX ", 0); @@ -1958,7 +1995,7 @@ ath5k_beacon_setup(struct ath5k_softc *sc, struct ath5k_buf *bf, ds->ds_data = bf->skbaddr; ret = ah->ah_setup_tx_desc(ah, ds, skb->len, ieee80211_get_hdrlen_from_skb(skb), - AR5K_PKT_TYPE_BEACON, (ctl->power_level * 2), ctl->tx_rate, 1, + AR5K_PKT_TYPE_BEACON, (sc->power_level * 2), ctl->tx_rate->hw_value, 1, AR5K_TXKEYIX_INVALID, antenna, flags, 0, 0); if (ret) goto err_unmap; @@ -2211,7 +2248,8 @@ ath5k_init(struct ath5k_softc *sc) * be followed by initialization of the appropriate bits * and then setup of the interrupt mask. */ - sc->curchan = sc->hw->conf.chan; + sc->curchan = sc->hw->conf.channel; + sc->curband = &sc->sbands[sc->curchan->band]; ret = ath5k_hw_reset(sc->ah, sc->opmode, sc->curchan, false); if (ret) { ATH5K_ERR(sc, "unable to reset hardware: %d\n", ret); @@ -2448,7 +2486,7 @@ ath5k_calibrate(unsigned long data) struct ath5k_hw *ah = sc->ah; ATH5K_DBG(sc, ATH5K_DEBUG_CALIBRATE, "channel %u/%x\n", - sc->curchan->chan, sc->curchan->val); + ieee80211_frequency_to_channel(sc->curchan->center_freq), sc->curchan->hw_value); if (ath5k_hw_get_rf_gain(ah) == AR5K_RFGAIN_NEED_CHANGE) { /* @@ -2460,7 +2498,7 @@ ath5k_calibrate(unsigned long data) } if (ath5k_hw_phy_calibrate(ah, sc->curchan)) ATH5K_ERR(sc, "calibration of channel %u failed\n", - sc->curchan->chan); + ieee80211_frequency_to_channel(sc->curchan->center_freq)); mod_timer(&sc->calib_tim, round_jiffies(jiffies + msecs_to_jiffies(ath5k_calinterval * 1000))); @@ -2558,7 +2596,7 @@ ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb, memmove(skb->data, skb->data+pad, hdrlen); } - sc->led_txrate = ctl->tx_rate; + sc->led_txrate = ctl->tx_rate->hw_value; spin_lock_irqsave(&sc->txbuflock, flags); if (list_empty(&sc->txbuf)) { @@ -2597,11 +2635,6 @@ ath5k_reset(struct ieee80211_hw *hw) int ret; ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "resetting\n"); - /* - * Convert to a hw channel description with the flags - * constrained to reflect the current operating mode. - */ - sc->curchan = hw->conf.chan; ath5k_hw_set_intr(ah, 0); ath5k_txq_cleanup(sc); @@ -2692,6 +2725,9 @@ end: mutex_unlock(&sc->lock); } +/* + * TODO: Phy disable/diversity etc + */ static int ath5k_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) @@ -2699,9 +2735,9 @@ ath5k_config(struct ieee80211_hw *hw, struct ath5k_softc *sc = hw->priv; sc->bintval = conf->beacon_int; - ath5k_setcurmode(sc, conf->phymode); + sc->power_level = conf->power_level; - return ath5k_chan_set(sc, conf->chan); + return ath5k_chan_set(sc, conf->channel); } static int |