diff options
Diffstat (limited to 'drivers/net/wireless/b43')
| -rw-r--r-- | drivers/net/wireless/b43/b43.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/dma.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/main.c | 227 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/pio.c | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/xmit.c | 60 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/xmit.h | 5 |
6 files changed, 184 insertions, 116 deletions
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index 427b8203e3f9..a53c378e7484 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -718,7 +718,6 @@ struct b43_wldev { bool bad_frames_preempt; /* Use "Bad Frames Preemption" (default off) */ bool dfq_valid; /* Directed frame queue valid (IBSS PS mode, ATIM) */ - bool short_slot; /* TRUE, if short slot timing is enabled. */ bool radio_hw_enable; /* saved state of radio hardware enabled state */ bool suspend_in_progress; /* TRUE, if we are in a suspend/resume cycle */ diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index 098f886976f6..6d65a02b7052 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -1387,13 +1387,11 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev, info = IEEE80211_SKB_CB(meta->skb); - memset(&info->status, 0, sizeof(info->status)); - /* * Call back to inform the ieee80211 subsystem about * the status of the transmission. */ - frame_succeed = b43_fill_txstatus_report(info, status); + frame_succeed = b43_fill_txstatus_report(dev, info, status); #ifdef CONFIG_B43_DEBUG if (frame_succeed) ring->nr_succeed_tx_packets++; diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 14c44df584d0..ba7a5ab7fe1d 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -703,13 +703,11 @@ static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) static void b43_short_slot_timing_enable(struct b43_wldev *dev) { b43_set_slot_time(dev, 9); - dev->short_slot = 1; } static void b43_short_slot_timing_disable(struct b43_wldev *dev) { b43_set_slot_time(dev, 20); - dev->short_slot = 0; } /* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable. @@ -1339,25 +1337,6 @@ u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev, return antenna_nr; } -static int b43_antenna_from_ieee80211(struct b43_wldev *dev, u8 antenna) -{ - antenna = b43_ieee80211_antenna_sanitize(dev, antenna); - switch (antenna) { - case 0: /* default/diversity */ - return B43_ANTENNA_DEFAULT; - case 1: /* Antenna 0 */ - return B43_ANTENNA0; - case 2: /* Antenna 1 */ - return B43_ANTENNA1; - case 3: /* Antenna 2 */ - return B43_ANTENNA2; - case 4: /* Antenna 3 */ - return B43_ANTENNA3; - default: - return B43_ANTENNA_DEFAULT; - } -} - /* Convert a b43 antenna number value to the PHY TX control value. */ static u16 b43_antenna_to_phyctl(int antenna) { @@ -1399,7 +1378,7 @@ static void b43_write_beacon_template(struct b43_wldev *dev, len, ram_offset, shm_size_offset, rate); /* Write the PHY TX control parameters. */ - antenna = b43_antenna_from_ieee80211(dev, info->antenna_sel_tx); + antenna = B43_ANTENNA_DEFAULT; antenna = b43_antenna_to_phyctl(antenna); ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL); /* We can't send beacons with short preamble. Would get PHY errors. */ @@ -1693,25 +1672,6 @@ static void b43_update_templates(struct b43_wl *wl) queue_work(wl->hw->workqueue, &wl->beacon_update_trigger); } -static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len) -{ - u32 tmp; - u16 i, len; - - len = min((u16) ssid_len, (u16) 0x100); - for (i = 0; i < len; i += sizeof(u32)) { - tmp = (u32) (ssid[i + 0]); - if (i + 1 < len) - tmp |= (u32) (ssid[i + 1]) << 8; - if (i + 2 < len) - tmp |= (u32) (ssid[i + 2]) << 16; - if (i + 3 < len) - tmp |= (u32) (ssid[i + 3]) << 24; - b43_shm_write32(dev, B43_SHM_SHARED, 0x380 + i, tmp); - } - b43_shm_write16(dev, B43_SHM_SHARED, 0x48, len); -} - static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int) { b43_time_lock(dev); @@ -3339,11 +3299,28 @@ init_failure: return err; } -static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) +/* Write the short and long frame retry limit values. */ +static void b43_set_retry_limits(struct b43_wldev *dev, + unsigned int short_retry, + unsigned int long_retry) +{ + /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing + * the chip-internal counter. */ + short_retry = min(short_retry, (unsigned int)0xF); + long_retry = min(long_retry, (unsigned int)0xF); + + b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, + short_retry); + b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, + long_retry); +} + +static int b43_op_config(struct ieee80211_hw *hw, u32 changed) { struct b43_wl *wl = hw_to_b43_wl(hw); struct b43_wldev *dev; struct b43_phy *phy; + struct ieee80211_conf *conf = &hw->conf; unsigned long flags; int antenna; int err = 0; @@ -3358,6 +3335,13 @@ static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) dev = wl->current_dev; phy = &dev->phy; + if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) + b43_set_retry_limits(dev, conf->short_frame_max_tx_count, + conf->long_frame_max_tx_count); + changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; + if (!changed) + goto out_unlock_mutex; + /* Disable IRQs while reconfiguring the device. * This makes it possible to drop the spinlock throughout * the reconfiguration process. */ @@ -3375,16 +3359,6 @@ static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) if (conf->channel->hw_value != phy->channel) b43_switch_channel(dev, conf->channel->hw_value); - /* Enable/Disable ShortSlot timing. */ - if ((!!(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)) != - dev->short_slot) { - B43_WARN_ON(phy->type != B43_PHYTYPE_G); - if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) - b43_short_slot_timing_enable(dev); - else - b43_short_slot_timing_disable(dev); - } - dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP); /* Adjust the desired TX power level. */ @@ -3399,9 +3373,9 @@ static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) } /* Antennas for RX and management frame TX. */ - antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_tx); + antenna = B43_ANTENNA_DEFAULT; b43_mgmtframe_txantenna(dev, antenna); - antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_rx); + antenna = B43_ANTENNA_DEFAULT; if (phy->ops->set_rx_antenna) phy->ops->set_rx_antenna(dev, antenna); @@ -3435,6 +3409,104 @@ static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) return err; } +static void b43_update_basic_rates(struct b43_wldev *dev, u64 brates) +{ + struct ieee80211_supported_band *sband = + dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)]; + struct ieee80211_rate *rate; + int i; + u16 basic, direct, offset, basic_offset, rateptr; + + for (i = 0; i < sband->n_bitrates; i++) { + rate = &sband->bitrates[i]; + + if (b43_is_cck_rate(rate->hw_value)) { + direct = B43_SHM_SH_CCKDIRECT; + basic = B43_SHM_SH_CCKBASIC; + offset = b43_plcp_get_ratecode_cck(rate->hw_value); + offset &= 0xF; + } else { + direct = B43_SHM_SH_OFDMDIRECT; + basic = B43_SHM_SH_OFDMBASIC; + offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); + offset &= 0xF; + } + + rate = ieee80211_get_response_rate(sband, brates, rate->bitrate); + + if (b43_is_cck_rate(rate->hw_value)) { + basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value); + basic_offset &= 0xF; + } else { + basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); + basic_offset &= 0xF; + } + + /* + * Get the pointer that we need to point to + * from the direct map + */ + rateptr = b43_shm_read16(dev, B43_SHM_SHARED, + direct + 2 * basic_offset); + /* and write it to the basic map */ + b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset, + rateptr); + } +} + +static void b43_op_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *conf, + u32 changed) +{ + struct b43_wl *wl = hw_to_b43_wl(hw); + struct b43_wldev *dev; + struct b43_phy *phy; + unsigned long flags; + u32 savedirqs; + + mutex_lock(&wl->mutex); + + dev = wl->current_dev; + phy = &dev->phy; + + /* Disable IRQs while reconfiguring the device. + * This makes it possible to drop the spinlock throughout + * the reconfiguration process. */ + spin_lock_irqsave(&wl->irq_lock, flags); + if (b43_status(dev) < B43_STAT_STARTED) { + spin_unlock_irqrestore(&wl->irq_lock, flags); + goto out_unlock_mutex; + } + savedirqs = b43_interrupt_disable(dev, B43_IRQ_ALL); + spin_unlock_irqrestore(&wl->irq_lock, flags); + b43_synchronize_irq(dev); + + b43_mac_suspend(dev); + + if (changed & BSS_CHANGED_BASIC_RATES) + b43_update_basic_rates(dev, conf->basic_rates); + + if (changed & BSS_CHANGED_ERP_SLOT) { + if (conf->use_short_slot) + b43_short_slot_timing_enable(dev); + else + b43_short_slot_timing_disable(dev); + } + + b43_mac_enable(dev); + + spin_lock_irqsave(&wl->irq_lock, flags); + b43_interrupt_enable(dev, savedirqs); + /* XXX: why? */ + mmiowb(); + spin_unlock_irqrestore(&wl->irq_lock, flags); + out_unlock_mutex: + mutex_unlock(&wl->mutex); + + return; +} + static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, const u8 *local_addr, const u8 *addr, struct ieee80211_key_conf *key) @@ -3445,7 +3517,6 @@ static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, u8 algorithm; u8 index; int err; - DECLARE_MAC_BUF(mac); if (modparam_nohwcrypt) return -ENOSPC; /* User disabled HW-crypto */ @@ -3533,9 +3604,9 @@ out_unlock: mutex_unlock(&wl->mutex); if (!err) { b43dbg(wl, "%s hardware based encryption for keyidx: %d, " - "mac: %s\n", + "mac: %pM\n", cmd == SET_KEY ? "Using" : "Disabling", key->keyidx, - print_mac(mac, addr)); + addr); } return err; } @@ -3598,8 +3669,6 @@ static int b43_op_config_interface(struct ieee80211_hw *hw, if (b43_is_mode(wl, NL80211_IFTYPE_AP) || b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) { B43_WARN_ON(vif->type != wl->if_type); - if (conf->changed & IEEE80211_IFCC_SSID) - b43_set_ssid(dev, conf->ssid, conf->ssid_len); if (conf->changed & IEEE80211_IFCC_BEACON) b43_update_templates(wl); } else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) { @@ -3878,22 +3947,6 @@ static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev) #endif /* CONFIG_SSB_DRIVER_PCICORE */ } -/* Write the short and long frame retry limit values. */ -static void b43_set_retry_limits(struct b43_wldev *dev, - unsigned int short_retry, - unsigned int long_retry) -{ - /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing - * the chip-internal counter. */ - short_retry = min(short_retry, (unsigned int)0xF); - long_retry = min(long_retry, (unsigned int)0xF); - - b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, - short_retry); - b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, - long_retry); -} - static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle) { u16 pu_delay; @@ -4214,26 +4267,6 @@ static void b43_op_stop(struct ieee80211_hw *hw) cancel_work_sync(&(wl->txpower_adjust_work)); } -static int b43_op_set_retry_limit(struct ieee80211_hw *hw, - u32 short_retry_limit, u32 long_retry_limit) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - int err = 0; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) { - err = -ENODEV; - goto out_unlock; - } - b43_set_retry_limits(dev, short_retry_limit, long_retry_limit); -out_unlock: - mutex_unlock(&wl->mutex); - - return err; -} - static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set) { @@ -4263,6 +4296,7 @@ static const struct ieee80211_ops b43_hw_ops = { .add_interface = b43_op_add_interface, .remove_interface = b43_op_remove_interface, .config = b43_op_config, + .bss_info_changed = b43_op_bss_info_changed, .config_interface = b43_op_config_interface, .configure_filter = b43_op_configure_filter, .set_key = b43_op_set_key, @@ -4270,7 +4304,6 @@ static const struct ieee80211_ops b43_hw_ops = { .get_tx_stats = b43_op_get_tx_stats, .start = b43_op_start, .stop = b43_op_stop, - .set_retry_limit = b43_op_set_retry_limit, .set_tim = b43_op_beacon_set_tim, .sta_notify = b43_op_sta_notify, }; @@ -4588,7 +4621,7 @@ static int b43_wireless_init(struct ssb_device *dev) BIT(NL80211_IFTYPE_ADHOC); hw->queues = b43_modparam_qos ? 4 : 1; - hw->max_altrates = 1; + hw->max_rates = 2; SET_IEEE80211_DEV(hw, dev->dev); if (is_valid_ether_addr(sprom->et1mac)) SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c index 401591267592..1036bef8c4cc 100644 --- a/drivers/net/wireless/b43/pio.c +++ b/drivers/net/wireless/b43/pio.c @@ -587,9 +587,8 @@ void b43_pio_handle_txstatus(struct b43_wldev *dev, spin_lock(&q->lock); /* IRQs are already disabled. */ info = IEEE80211_SKB_CB(pack->skb); - memset(&info->status, 0, sizeof(info->status)); - b43_fill_txstatus_report(info, status); + b43_fill_txstatus_report(dev, info, status); total_len = pack->skb->len + b43_txhdr_size(dev); total_len = roundup(total_len, 4); diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c index 2fabcf8f0474..adba89b816d4 100644 --- a/drivers/net/wireless/b43/xmit.c +++ b/drivers/net/wireless/b43/xmit.c @@ -185,7 +185,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, u8 *_txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *info, + struct ieee80211_tx_info *info, u16 cookie) { struct b43_txhdr *txhdr = (struct b43_txhdr *)_txhdr; @@ -202,6 +202,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, u16 phy_ctl = 0; u8 extra_ft = 0; struct ieee80211_rate *txrate; + struct ieee80211_tx_rate *rates; memset(txhdr, 0, sizeof(*txhdr)); @@ -291,7 +292,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, phy_ctl |= B43_TXH_PHY_ENC_OFDM; else phy_ctl |= B43_TXH_PHY_ENC_CCK; - if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) phy_ctl |= B43_TXH_PHY_SHORTPRMBL; switch (b43_ieee80211_antenna_sanitize(dev, info->antenna_sel_tx)) { @@ -314,6 +315,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, B43_WARN_ON(1); } + rates = info->control.rates; /* MAC control */ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) mac_ctl |= B43_TXH_MAC_ACK; @@ -324,12 +326,22 @@ int b43_generate_txhdr(struct b43_wldev *dev, mac_ctl |= B43_TXH_MAC_STMSDU; if (phy->type == B43_PHYTYPE_A) mac_ctl |= B43_TXH_MAC_5GHZ; - if (info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT) + + /* Overwrite rates[0].count to make the retry calculation + * in the tx status easier. need the actual retry limit to + * detect whether the fallback rate was used. + */ + if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) { + rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count; mac_ctl |= B43_TXH_MAC_LONGFRAME; + } else { + rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count; + } /* Generate the RTS or CTS-to-self frame */ - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { + if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) { unsigned int len; struct ieee80211_hdr *hdr; int rts_rate, rts_rate_fb; @@ -344,7 +356,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, rts_rate_fb = b43_calc_fallback_rate(rts_rate); rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb); - if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { struct ieee80211_cts *cts; if (b43_is_old_txhdr_format(dev)) { @@ -687,10 +699,18 @@ void b43_handle_txstatus(struct b43_wldev *dev, /* Fill out the mac80211 TXstatus report based on the b43-specific * txstatus report data. This returns a boolean whether the frame was * successfully transmitted. */ -bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, +bool b43_fill_txstatus_report(struct b43_wldev *dev, + struct ieee80211_tx_info *report, const struct b43_txstatus *status) { bool frame_success = 1; + int retry_limit; + + /* preserve the confiured retry limit before clearing the status + * The xmit function has overwritten the rc's value with the actual + * retry limit done by the hardware */ + retry_limit = report->status.rates[0].count; + ieee80211_tx_info_clear_status(report); if (status->acked) { /* The frame was ACKed. */ @@ -700,14 +720,32 @@ bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, if (!(report->flags & IEEE80211_TX_CTL_NO_ACK)) { /* ...but we expected an ACK. */ frame_success = 0; - report->status.excessive_retries = 1; } } if (status->frame_count == 0) { /* The frame was not transmitted at all. */ - report->status.retry_count = 0; - } else - report->status.retry_count = status->frame_count - 1; + report->status.rates[0].count = 0; + } else if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) { + /* + * If the short retries (RTS, not data frame) have exceeded + * the limit, the hw will not have tried the selected rate, + * but will have used the fallback rate instead. + * Don't let the rate control count attempts for the selected + * rate in this case, otherwise the statistics will be off. + */ + report->status.rates[0].count = 0; + report->status.rates[1].count = status->frame_count; + } else { + if (status->frame_count > retry_limit) { + report->status.rates[0].count = retry_limit; + report->status.rates[1].count = status->frame_count - + retry_limit; + + } else { + report->status.rates[0].count = status->frame_count; + report->status.rates[1].idx = -1; + } + } return frame_success; } diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h index 0215faf47541..4fb2a190f7a7 100644 --- a/drivers/net/wireless/b43/xmit.h +++ b/drivers/net/wireless/b43/xmit.h @@ -178,7 +178,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, u8 * txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *txctl, u16 cookie); + struct ieee80211_tx_info *txctl, u16 cookie); /* Transmit Status */ struct b43_txstatus { @@ -294,7 +294,8 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr); void b43_handle_txstatus(struct b43_wldev *dev, const struct b43_txstatus *status); -bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, +bool b43_fill_txstatus_report(struct b43_wldev *dev, + struct ieee80211_tx_info *report, const struct b43_txstatus *status); void b43_tx_suspend(struct b43_wldev *dev); |