diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl4965-base.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl4965-base.c | 1243 |
1 files changed, 195 insertions, 1048 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index c71daec8c74..f5911687671 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -87,46 +87,6 @@ MODULE_VERSION(DRV_VERSION); MODULE_AUTHOR(DRV_COPYRIGHT); MODULE_LICENSE("GPL"); -static int iwl4965_is_empty_essid(const char *essid, int essid_len) -{ - /* Single white space is for Linksys APs */ - if (essid_len == 1 && essid[0] == ' ') - return 1; - - /* Otherwise, if the entire essid is 0, we assume it is hidden */ - while (essid_len) { - essid_len--; - if (essid[essid_len] != '\0') - return 0; - } - - return 1; -} - -static const char *iwl4965_escape_essid(const char *essid, u8 essid_len) -{ - static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; - const char *s = essid; - char *d = escaped; - - if (iwl4965_is_empty_essid(essid, essid_len)) { - memcpy(escaped, "<hidden>", sizeof("<hidden>")); - return escaped; - } - - essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE); - while (essid_len--) { - if (*s == '\0') { - *d++ = '\\'; - *d++ = '0'; - s++; - } else - *d++ = *s++; - } - *d = '\0'; - return escaped; -} - /*************** STATION TABLE MANAGEMENT **** * mac80211 should be examined to determine if sta_info is duplicating * the functionality provided here @@ -367,9 +327,9 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv) /* If we issue a new RXON command which required a tune then we must * send a new TXPOWER command or we won't be able to Tx any frames */ - rc = iwl4965_hw_reg_send_txpower(priv); + rc = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true); if (rc) { - IWL_ERROR("Error setting Tx power (%d).\n", rc); + IWL_ERROR("Error sending TX power (%d).\n", rc); return rc; } @@ -419,69 +379,6 @@ static int iwl4965_send_bt_config(struct iwl_priv *priv) sizeof(struct iwl4965_bt_cmd), &bt_cmd); } -static int iwl4965_send_scan_abort(struct iwl_priv *priv) -{ - int ret = 0; - struct iwl_rx_packet *res; - struct iwl_host_cmd cmd = { - .id = REPLY_SCAN_ABORT_CMD, - .meta.flags = CMD_WANT_SKB, - }; - - /* If there isn't a scan actively going on in the hardware - * then we are in between scan bands and not actually - * actively scanning, so don't send the abort command */ - if (!test_bit(STATUS_SCAN_HW, &priv->status)) { - clear_bit(STATUS_SCAN_ABORTING, &priv->status); - return 0; - } - - ret = iwl_send_cmd_sync(priv, &cmd); - if (ret) { - clear_bit(STATUS_SCAN_ABORTING, &priv->status); - return ret; - } - - res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; - if (res->u.status != CAN_ABORT_STATUS) { - /* The scan abort will return 1 for success or - * 2 for "failure". A failure condition can be - * due to simply not being in an active scan which - * can occur if we send the scan abort before we - * the microcode has notified us that a scan is - * completed. */ - IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status); - clear_bit(STATUS_SCAN_ABORTING, &priv->status); - clear_bit(STATUS_SCAN_HW, &priv->status); - } - - dev_kfree_skb_any(cmd.meta.u.skb); - - return ret; -} - -/* - * CARD_STATE_CMD - * - * Use: Sets the device's internal card state to enable, disable, or halt - * - * When in the 'enable' state the card operates as normal. - * When in the 'disable' state, the card enters into a low power mode. - * When in the 'halt' state, the card is shut down and must be fully - * restarted to come back on. - */ -static int iwl4965_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag) -{ - struct iwl_host_cmd cmd = { - .id = REPLY_CARD_STATE_CMD, - .len = sizeof(u32), - .data = &flags, - .meta.flags = meta_flag, - }; - - return iwl_send_cmd(priv, &cmd); -} - static void iwl_clear_free_frames(struct iwl_priv *priv) { struct list_head *element; @@ -605,36 +502,6 @@ static int iwl4965_send_beacon_cmd(struct iwl_priv *priv) * ******************************************************************************/ -/** - * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field - * - * return : set the bit for each supported rate insert in ie - */ -static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate, - u16 basic_rate, int *left) -{ - u16 ret_rates = 0, bit; - int i; - u8 *cnt = ie; - u8 *rates = ie + 1; - - for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { - if (bit & supported_rate) { - ret_rates |= bit; - rates[*cnt] = iwl_rates[i].ieee | - ((bit & basic_rate) ? 0x80 : 0x00); - (*cnt)++; - (*left)--; - if ((*left <= 0) || - (*cnt >= IWL_SUPPORTED_RATES_IE_LEN)) - break; - } - } - - return ret_rates; -} - -#ifdef CONFIG_IWL4965_HT static void iwl4965_ht_conf(struct iwl_priv *priv, struct ieee80211_bss_conf *bss_conf) { @@ -665,9 +532,11 @@ static void iwl4965_ht_conf(struct iwl_priv *priv, iwl_conf->extension_chan_offset = ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET; /* If no above or below channel supplied disable FAT channel */ - if (iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_ABOVE && - iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_BELOW) + if (iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_ABOVE && + iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_BELOW) { + iwl_conf->extension_chan_offset = IEEE80211_HT_IE_CHA_SEC_NONE; iwl_conf->supported_chan_width = 0; + } iwl_conf->tx_mimo_ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); @@ -685,151 +554,6 @@ static void iwl4965_ht_conf(struct iwl_priv *priv, IWL_DEBUG_MAC80211("leave\n"); } -static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband, - u8 *pos, int *left) -{ - struct ieee80211_ht_cap *ht_cap; - - if (!sband || !sband->ht_info.ht_supported) - return; - - if (*left < sizeof(struct ieee80211_ht_cap)) - return; - - *pos++ = sizeof(struct ieee80211_ht_cap); - ht_cap = (struct ieee80211_ht_cap *) pos; - - ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap); - memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16); - ht_cap->ampdu_params_info = - (sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) | - ((sband->ht_info.ampdu_density << 2) & - IEEE80211_HT_CAP_AMPDU_DENSITY); - *left -= sizeof(struct ieee80211_ht_cap); -} -#else -static inline void iwl4965_ht_conf(struct iwl_priv *priv, - struct ieee80211_bss_conf *bss_conf) -{ -} -static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband, - u8 *pos, int *left) -{ -} -#endif - - -/** - * iwl4965_fill_probe_req - fill in all required fields and IE for probe request - */ -static u16 iwl4965_fill_probe_req(struct iwl_priv *priv, - enum ieee80211_band band, - struct ieee80211_mgmt *frame, - int left, int is_direct) -{ - int len = 0; - u8 *pos = NULL; - u16 active_rates, ret_rates, cck_rates, active_rate_basic; - const struct ieee80211_supported_band *sband = - iwl_get_hw_mode(priv, band); - - /* Make sure there is enough space for the probe request, - * two mandatory IEs and the data */ - left -= 24; - if (left < 0) - return 0; - len += 24; - - frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); - memcpy(frame->da, iwl_bcast_addr, ETH_ALEN); - memcpy(frame->sa, priv->mac_addr, ETH_ALEN); - memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN); - frame->seq_ctrl = 0; - - /* fill in our indirect SSID IE */ - /* ...next IE... */ - - left -= 2; - if (left < 0) - return 0; - len += 2; - pos = &(frame->u.probe_req.variable[0]); - *pos++ = WLAN_EID_SSID; - *pos++ = 0; - - /* fill in our direct SSID IE... */ - if (is_direct) { - /* ...next IE... */ - left -= 2 + priv->essid_len; - if (left < 0) - return 0; - /* ... fill it in... */ - *pos++ = WLAN_EID_SSID; - *pos++ = priv->essid_len; - memcpy(pos, priv->essid, priv->essid_len); - pos += priv->essid_len; - len += 2 + priv->essid_len; - } - - /* fill in supported rate */ - /* ...next IE... */ - left -= 2; - if (left < 0) - return 0; - - /* ... fill it in... */ - *pos++ = WLAN_EID_SUPP_RATES; - *pos = 0; - - /* exclude 60M rate */ - active_rates = priv->rates_mask; - active_rates &= ~IWL_RATE_60M_MASK; - - active_rate_basic = active_rates & IWL_BASIC_RATES_MASK; - - cck_rates = IWL_CCK_RATES_MASK & active_rates; - ret_rates = iwl4965_supported_rate_to_ie(pos, cck_rates, - active_rate_basic, &left); - active_rates &= ~ret_rates; - - ret_rates = iwl4965_supported_rate_to_ie(pos, active_rates, - active_rate_basic, &left); - active_rates &= ~ret_rates; - - len += 2 + *pos; - pos += (*pos) + 1; - if (active_rates == 0) - goto fill_end; - - /* fill in supported extended rate */ - /* ...next IE... */ - left -= 2; - if (left < 0) - return 0; - /* ... fill it in... */ - *pos++ = WLAN_EID_EXT_SUPP_RATES; - *pos = 0; - iwl4965_supported_rate_to_ie(pos, active_rates, - active_rate_basic, &left); - if (*pos > 0) - len += 2 + *pos; - - fill_end: - /* fill in HT IE */ - left -= 2; - if (left < 0) - return 0; - - *pos++ = WLAN_EID_HT_CAPABILITY; - *pos = 0; - - iwl_ht_cap_to_ie(sband, pos, &left); - - if (*pos > 0) - len += 2 + *pos; - return (u16)len; -} - /* * QoS support */ @@ -862,10 +586,8 @@ static void iwl4965_activate_qos(struct iwl_priv *priv, u8 force) priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_UPDATE_EDCA_MSK; -#ifdef CONFIG_IWL4965_HT if (priv->current_ht_config.is_ht) priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; -#endif /* CONFIG_IWL4965_HT */ spin_unlock_irqrestore(&priv->lock, flags); @@ -909,60 +631,6 @@ int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *heade return 1; } - - -/** - * iwl4965_scan_cancel - Cancel any currently executing HW scan - * - * NOTE: priv->mutex is not required before calling this function - */ -static int iwl4965_scan_cancel(struct iwl_priv *priv) -{ - if (!test_bit(STATUS_SCAN_HW, &priv->status)) { - clear_bit(STATUS_SCANNING, &priv->status); - return 0; - } - - if (test_bit(STATUS_SCANNING, &priv->status)) { - if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) { - IWL_DEBUG_SCAN("Queuing scan abort.\n"); - set_bit(STATUS_SCAN_ABORTING, &priv->status); - queue_work(priv->workqueue, &priv->abort_scan); - - } else - IWL_DEBUG_SCAN("Scan abort already in progress.\n"); - - return test_bit(STATUS_SCANNING, &priv->status); - } - - return 0; -} - -/** - * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan - * @ms: amount of time to wait (in milliseconds) for scan to abort - * - * NOTE: priv->mutex must be held before calling this function - */ -static int iwl4965_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms) -{ - unsigned long now = jiffies; - int ret; - - ret = iwl4965_scan_cancel(priv); - if (ret && ms) { - mutex_unlock(&priv->mutex); - while (!time_after(jiffies, now + msecs_to_jiffies(ms)) && - test_bit(STATUS_SCANNING, &priv->status)) - msleep(1); - mutex_lock(&priv->mutex); - - return test_bit(STATUS_SCANNING, &priv->status); - } - - return ret; -} - static void iwl4965_sequence_reset(struct iwl_priv *priv) { /* Reset ieee stats */ @@ -974,7 +642,7 @@ static void iwl4965_sequence_reset(struct iwl_priv *priv) priv->last_frag_num = -1; priv->last_packet_time = 0; - iwl4965_scan_cancel(priv); + iwl_scan_cancel(priv); } #define MAX_UCODE_BEACON_INTERVAL 4096 @@ -1049,41 +717,6 @@ static void iwl4965_setup_rxon_timing(struct iwl_priv *priv) le16_to_cpu(priv->rxon_timing.atim_window)); } -static int iwl4965_scan_initiate(struct iwl_priv *priv) -{ - if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { - IWL_ERROR("APs don't scan.\n"); - return 0; - } - - if (!iwl_is_ready_rf(priv)) { - IWL_DEBUG_SCAN("Aborting scan due to not ready.\n"); - return -EIO; - } - - if (test_bit(STATUS_SCANNING, &priv->status)) { - IWL_DEBUG_SCAN("Scan already in progress.\n"); - return -EAGAIN; - } - - if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { - IWL_DEBUG_SCAN("Scan request while abort pending. " - "Queuing.\n"); - return -EAGAIN; - } - - IWL_DEBUG_INFO("Starting scan...\n"); - priv->scan_bands = 2; - set_bit(STATUS_SCANNING, &priv->status); - priv->scan_start = jiffies; - priv->scan_pass_start = priv->scan_start; - - queue_work(priv->workqueue, &priv->request_scan); - - return 0; -} - - static void iwl_set_flags_for_band(struct iwl_priv *priv, enum ieee80211_band band) { @@ -1188,22 +821,11 @@ static void iwl4965_connection_init_rx_config(struct iwl_priv *priv) static int iwl4965_set_mode(struct iwl_priv *priv, int mode) { - if (mode == IEEE80211_IF_TYPE_IBSS) { - const struct iwl_channel_info *ch_info; - - ch_info = iwl_get_channel_info(priv, - priv->band, - le16_to_cpu(priv->staging_rxon.channel)); - - if (!ch_info || !is_channel_ibss(ch_info)) { - IWL_ERROR("channel %d not IBSS channel\n", - le16_to_cpu(priv->staging_rxon.channel)); - return -EINVAL; - } - } - priv->iw_mode = mode; + /* init channel/phymode to values given at driver init */ + iwl_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6); + iwl4965_connection_init_rx_config(priv); memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); @@ -1214,7 +836,7 @@ static int iwl4965_set_mode(struct iwl_priv *priv, int mode) return -EAGAIN; cancel_delayed_work(&priv->scan_check); - if (iwl4965_scan_cancel_timeout(priv, 100)) { + if (iwl_scan_cancel_timeout(priv, 100)) { IWL_WARNING("Aborted scan still in progress after 100ms\n"); IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); return -EAGAIN; @@ -1272,64 +894,6 @@ static void iwl4965_set_rate(struct iwl_priv *priv) (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; } -void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio) -{ - unsigned long flags; - - if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status)) - return; - - IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n", - disable_radio ? "OFF" : "ON"); - - if (disable_radio) { - iwl4965_scan_cancel(priv); - /* FIXME: This is a workaround for AP */ - if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { - spin_lock_irqsave(&priv->lock, flags); - iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, - CSR_UCODE_SW_BIT_RFKILL); - spin_unlock_irqrestore(&priv->lock, flags); - /* call the host command only if no hw rf-kill set */ - if (!test_bit(STATUS_RF_KILL_HW, &priv->status) && - iwl_is_ready(priv)) - iwl4965_send_card_state(priv, - CARD_STATE_CMD_DISABLE, - 0); - set_bit(STATUS_RF_KILL_SW, &priv->status); - - /* make sure mac80211 stop sending Tx frame */ - if (priv->mac80211_registered) - ieee80211_stop_queues(priv->hw); - } - return; - } - - spin_lock_irqsave(&priv->lock, flags); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); - - clear_bit(STATUS_RF_KILL_SW, &priv->status); - spin_unlock_irqrestore(&priv->lock, flags); - - /* wake up ucode */ - msleep(10); - - spin_lock_irqsave(&priv->lock, flags); - iwl_read32(priv, CSR_UCODE_DRV_GP1); - if (!iwl_grab_nic_access(priv)) - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->lock, flags); - - if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { - IWL_DEBUG_RF_KILL("Can not turn radio back on - " - "disabled by HW switch\n"); - return; - } - - queue_work(priv->workqueue, &priv->restart); - return; -} - #define IWL_PACKET_RETRY_TIME HZ int iwl4965_is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr *header) @@ -1661,17 +1225,37 @@ static void iwl4965_bg_beacon_update(struct work_struct *work) iwl4965_send_beacon_cmd(priv); } +/** + * iwl4965_bg_statistics_periodic - Timer callback to queue statistics + * + * This callback is provided in order to send a statistics request. + * + * This timer function is continually reset to execute within + * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION + * was received. We need to ensure we receive the statistics in order + * to update the temperature used for calibrating the TXPOWER. + */ +static void iwl4965_bg_statistics_periodic(unsigned long data) +{ + struct iwl_priv *priv = (struct iwl_priv *)data; + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + iwl_send_statistics_request(priv, CMD_ASYNC); +} + static void iwl4965_rx_beacon_notif(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { #ifdef CONFIG_IWLWIFI_DEBUG struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status); - u8 rate = iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); + u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); IWL_DEBUG_RX("beacon status %x retries %d iss %d " "tsf %d %d rate %d\n", - le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, + le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, beacon->beacon_notify_hdr.failure_frame, le32_to_cpu(beacon->ibss_mgr_status), le32_to_cpu(beacon->high_tsf), @@ -1683,118 +1267,6 @@ static void iwl4965_rx_beacon_notif(struct iwl_priv *priv, queue_work(priv->workqueue, &priv->beacon_update); } -/* Service response to REPLY_SCAN_CMD (0x80) */ -static void iwl4965_rx_reply_scan(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ -#ifdef CONFIG_IWLWIFI_DEBUG - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - struct iwl4965_scanreq_notification *notif = - (struct iwl4965_scanreq_notification *)pkt->u.raw; - - IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status); -#endif -} - -/* Service SCAN_START_NOTIFICATION (0x82) */ -static void iwl4965_rx_scan_start_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - struct iwl4965_scanstart_notification *notif = - (struct iwl4965_scanstart_notification *)pkt->u.raw; - priv->scan_start_tsf = le32_to_cpu(notif->tsf_low); - IWL_DEBUG_SCAN("Scan start: " - "%d [802.11%s] " - "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", - notif->channel, - notif->band ? "bg" : "a", - notif->tsf_high, - notif->tsf_low, notif->status, notif->beacon_timer); -} - -/* Service SCAN_RESULTS_NOTIFICATION (0x83) */ -static void iwl4965_rx_scan_results_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - struct iwl4965_scanresults_notification *notif = - (struct iwl4965_scanresults_notification *)pkt->u.raw; - - IWL_DEBUG_SCAN("Scan ch.res: " - "%d [802.11%s] " - "(TSF: 0x%08X:%08X) - %d " - "elapsed=%lu usec (%dms since last)\n", - notif->channel, - notif->band ? "bg" : "a", - le32_to_cpu(notif->tsf_high), - le32_to_cpu(notif->tsf_low), - le32_to_cpu(notif->statistics[0]), - le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf, - jiffies_to_msecs(elapsed_jiffies - (priv->last_scan_jiffies, jiffies))); - - priv->last_scan_jiffies = jiffies; - priv->next_scan_jiffies = 0; -} - -/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */ -static void iwl4965_rx_scan_complete_notif(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - struct iwl4965_scancomplete_notification *scan_notif = (void *)pkt->u.raw; - - IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n", - scan_notif->scanned_channels, - scan_notif->tsf_low, - scan_notif->tsf_high, scan_notif->status); - - /* The HW is no longer scanning */ - clear_bit(STATUS_SCAN_HW, &priv->status); - - /* The scan completion notification came in, so kill that timer... */ - cancel_delayed_work(&priv->scan_check); - - IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", - (priv->scan_bands == 2) ? "2.4" : "5.2", - jiffies_to_msecs(elapsed_jiffies - (priv->scan_pass_start, jiffies))); - - /* Remove this scanned band from the list - * of pending bands to scan */ - priv->scan_bands--; - - /* If a request to abort was given, or the scan did not succeed - * then we reset the scan state machine and terminate, - * re-queuing another scan if one has been requested */ - if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { - IWL_DEBUG_INFO("Aborted scan completed.\n"); - clear_bit(STATUS_SCAN_ABORTING, &priv->status); - } else { - /* If there are more bands on this scan pass reschedule */ - if (priv->scan_bands > 0) - goto reschedule; - } - - priv->last_scan_jiffies = jiffies; - priv->next_scan_jiffies = 0; - IWL_DEBUG_INFO("Setting scan to off\n"); - - clear_bit(STATUS_SCANNING, &priv->status); - - IWL_DEBUG_INFO("Scan took %dms\n", - jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies))); - - queue_work(priv->workqueue, &priv->scan_completed); - - return; - -reschedule: - priv->scan_pass_start = jiffies; - queue_work(priv->workqueue, &priv->request_scan); -} - /* Handle notification from uCode that card's power state is changing * due to software, hardware, or critical temperature RFKILL */ static void iwl4965_rx_card_state_notif(struct iwl_priv *priv, @@ -1855,7 +1327,7 @@ static void iwl4965_rx_card_state_notif(struct iwl_priv *priv, clear_bit(STATUS_RF_KILL_SW, &priv->status); if (!(flags & RXON_CARD_DISABLED)) - iwl4965_scan_cancel(priv); + iwl_scan_cancel(priv); if ((test_bit(STATUS_RF_KILL_HW, &status) != test_bit(STATUS_RF_KILL_HW, &priv->status)) || @@ -1905,13 +1377,9 @@ static void iwl4965_setup_rx_handlers(struct iwl_priv *priv) */ priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_hw_rx_statistics; priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_hw_rx_statistics; - /* scan handlers */ - priv->rx_handlers[REPLY_SCAN_CMD] = iwl4965_rx_reply_scan; - priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl4965_rx_scan_start_notif; - priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] = - iwl4965_rx_scan_results_notif; - priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] = - iwl4965_rx_scan_complete_notif; + + iwl_setup_rx_scan_handlers(priv); + /* status change handler */ priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif; @@ -2049,42 +1517,6 @@ void iwl_rx_handle(struct iwl_priv *priv) priv->rxq.read = i; iwl_rx_queue_restock(priv); } -/* Convert linear signal-to-noise ratio into dB */ -static u8 ratio2dB[100] = { -/* 0 1 2 3 4 5 6 7 8 9 */ - 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ - 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ - 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ - 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ - 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ - 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ - 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ - 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ - 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ - 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ -}; - -/* Calculates a relative dB value from a ratio of linear - * (i.e. not dB) signal levels. - * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ -int iwl4965_calc_db_from_ratio(int sig_ratio) -{ - /* 1000:1 or higher just report as 60 dB */ - if (sig_ratio >= 1000) - return 60; - - /* 100:1 or higher, divide by 10 and use table, - * add 20 dB to make up for divide by 10 */ - if (sig_ratio >= 100) - return (20 + (int)ratio2dB[sig_ratio/10]); - - /* We shouldn't see this */ - if (sig_ratio < 1) - return 0; - - /* Use table for ratios 1:1 - 99:1 */ - return (int)ratio2dB[sig_ratio]; -} #define PERFECT_RSSI (-20) /* dBm */ #define WORST_RSSI (-95) /* dBm */ @@ -2459,138 +1891,6 @@ static irqreturn_t iwl4965_isr(int irq, void *data) return IRQ_NONE; } -/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after - * sending probe req. This should be set long enough to hear probe responses - * from more than one AP. */ -#define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */ -#define IWL_ACTIVE_DWELL_TIME_52 (10) - -/* For faster active scanning, scan will move to the next channel if fewer than - * PLCP_QUIET_THRESH packets are heard on this channel within - * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell - * time if it's a quiet channel (nothing responded to our probe, and there's - * no other traffic). - * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */ -#define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */ -#define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */ - -/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel. - * Must be set longer than active dwell time. - * For the most reliable scan, set > AP beacon interval (typically 100msec). */ -#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */ -#define IWL_PASSIVE_DWELL_TIME_52 (10) -#define IWL_PASSIVE_DWELL_BASE (100) -#define IWL_CHANNEL_TUNE_TIME 5 - -static inline u16 iwl4965_get_active_dwell_time(struct iwl_priv *priv, - enum ieee80211_band band) -{ - if (band == IEEE80211_BAND_5GHZ) - return IWL_ACTIVE_DWELL_TIME_52; - else - return IWL_ACTIVE_DWELL_TIME_24; -} - -static u16 iwl4965_get_passive_dwell_time(struct iwl_priv *priv, - enum ieee80211_band band) -{ - u16 active = iwl4965_get_active_dwell_time(priv, band); - u16 passive = (band != IEEE80211_BAND_5GHZ) ? - IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 : - IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52; - - if (iwl_is_associated(priv)) { - /* If we're associated, we clamp the maximum passive - * dwell time to be 98% of the beacon interval (minus - * 2 * channel tune time) */ - passive = priv->beacon_int; - if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive) - passive = IWL_PASSIVE_DWELL_BASE; - passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2; - } - - if (passive <= active) - passive = active + 1; - - return passive; -} - -static int iwl4965_get_channels_for_scan(struct iwl_priv *priv, - enum ieee80211_band band, - u8 is_active, u8 direct_mask, - struct iwl4965_scan_channel *scan_ch) -{ - const struct ieee80211_channel *channels = NULL; - const struct ieee80211_supported_band *sband; - const struct iwl_channel_info *ch_info; - u16 passive_dwell = 0; - u16 active_dwell = 0; - int added, i; - - sband = iwl_get_hw_mode(priv, band); - if (!sband) - return 0; - - channels = sband->channels; - - active_dwell = iwl4965_get_active_dwell_time(priv, band); - passive_dwell = iwl4965_get_passive_dwell_time(priv, band); - - for (i = 0, added = 0; i < sband->n_channels; i++) { - if (channels[i].flags & IEEE80211_CHAN_DISABLED) - continue; - - scan_ch->channel = ieee80211_frequency_to_channel(channels[i].center_freq); - - ch_info = iwl_get_channel_info(priv, band, - scan_ch->channel); - if (!is_channel_valid(ch_info)) { - IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n", - scan_ch->channel); - continue; - } - - if (!is_active || is_channel_passive(ch_info) || - (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) - scan_ch->type = 0; /* passive */ - else - scan_ch->type = 1; /* active */ - - if (scan_ch->type & 1) - scan_ch->type |= (direct_mask << 1); - - scan_ch->active_dwell = cpu_to_le16(active_dwell); - scan_ch->passive_dwell = cpu_to_le16(passive_dwell); - - /* Set txpower levels to defaults */ - scan_ch->tpc.dsp_atten = 110; - /* scan_pwr_info->tpc.dsp_atten; */ - - /*scan_pwr_info->tpc.tx_gain; */ - if (band == IEEE80211_BAND_5GHZ) - scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; - else { - scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); - /* NOTE: if we were doing 6Mb OFDM for scans we'd use - * power level: - * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; - */ - } - - IWL_DEBUG_SCAN("Scanning %d [%s %d]\n", - scan_ch->channel, - (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", - (scan_ch->type & 1) ? - active_dwell : passive_dwell); - - scan_ch++; - added++; - } - - IWL_DEBUG_SCAN("total channels to scan %d \n", added); - return added; -} - /****************************************************************************** * * uCode download functions @@ -2621,7 +1921,7 @@ static void iwl4965_nic_start(struct iwl_priv *priv) */ static int iwl4965_read_ucode(struct iwl_priv *priv) { - struct iwl4965_ucode *ucode; + struct iwl_ucode *ucode; int ret; const struct firmware *ucode_raw; const char *name = priv->cfg->fw_name; @@ -2849,9 +2149,6 @@ static void iwl_alive_start(struct iwl_priv *priv) /* After the ALIVE response, we can send host commands to 4965 uCode */ set_bit(STATUS_ALIVE, &priv->status); - /* Clear out the uCode error bit if it is set */ - clear_bit(STATUS_FW_ERROR, &priv->status); - if (iwl_is_rfkill(priv)) return; @@ -2882,7 +2179,7 @@ static void iwl_alive_start(struct iwl_priv *priv) iwl4965_commit_rxon(priv); /* At this point, the NIC is initialized and operational */ - iwl4965_rf_kill_ct_config(priv); + iwl_rf_kill_ct_config(priv); iwl_leds_register(priv); @@ -2893,15 +2190,19 @@ static void iwl_alive_start(struct iwl_priv *priv) if (priv->error_recovering) iwl4965_error_recovery(priv); - iwlcore_low_level_notify(priv, IWLCORE_START_EVT); + iwl_power_update_mode(priv, 1); ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC); + + if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status)) + iwl4965_set_mode(priv, priv->iw_mode); + return; restart: queue_work(priv->workqueue, &priv->restart); } -static void iwl4965_cancel_deferred_work(struct iwl_priv *priv); +static void iwl_cancel_deferred_work(struct iwl_priv *priv); static void __iwl4965_down(struct iwl_priv *priv) { @@ -2915,8 +2216,6 @@ static void __iwl4965_down(struct iwl_priv *priv) iwl_leds_unregister(priv); - iwlcore_low_level_notify(priv, IWLCORE_STOP_EVT); - iwlcore_clear_stations_table(priv); /* Unblock any waiting calls */ @@ -3005,7 +2304,7 @@ static void iwl4965_down(struct iwl_priv *priv) __iwl4965_down(priv); mutex_unlock(&priv->mutex); - iwl4965_cancel_deferred_work(priv); + iwl_cancel_deferred_work(priv); } #define MAX_HW_RESTARTS 5 @@ -3020,13 +2319,6 @@ static int __iwl4965_up(struct iwl_priv *priv) return -EIO; } - if (test_bit(STATUS_RF_KILL_SW, &priv->status)) { - IWL_WARNING("Radio disabled by SW RF kill (module " - "parameter)\n"); - iwl_rfkill_set_hw_state(priv); - return -ENODEV; - } - if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { IWL_ERROR("ucode not available for device bringup\n"); return -EIO; @@ -3080,7 +2372,8 @@ static int __iwl4965_up(struct iwl_priv *priv) priv->ucode_data.len); /* We return success when we resume from suspend and rf_kill is on. */ - if (test_bit(STATUS_RF_KILL_HW, &priv->status)) + if (test_bit(STATUS_RF_KILL_HW, &priv->status) || + test_bit(STATUS_RF_KILL_SW, &priv->status)) return 0; for (i = 0; i < MAX_HW_RESTARTS; i++) { @@ -3097,6 +2390,9 @@ static int __iwl4965_up(struct iwl_priv *priv) continue; } + /* Clear out the uCode error bit if it is set */ + clear_bit(STATUS_FW_ERROR, &priv->status); + /* start card; "initialize" will load runtime ucode */ iwl4965_nic_start(priv); @@ -3107,6 +2403,7 @@ static int __iwl4965_up(struct iwl_priv *priv) set_bit(STATUS_EXIT_PENDING, &priv->status); __iwl4965_down(priv); + clear_bit(STATUS_EXIT_PENDING, &priv->status); /* tried to restart and config the device for as long as our * patience could withstand */ @@ -3186,255 +2483,45 @@ static void iwl4965_bg_set_monitor(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, set_monitor); + int ret; IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n"); mutex_lock(&priv->mutex); - if (!iwl_is_ready(priv)) - IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n"); - else - if (iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR) != 0) - IWL_ERROR("iwl4965_set_mode() failed\n"); - - mutex_unlock(&priv->mutex); -} + ret = iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR); -#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) - -static void iwl4965_bg_scan_check(struct work_struct *data) -{ - struct iwl_priv *priv = - container_of(data, struct iwl_priv, scan_check.work); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - mutex_lock(&priv->mutex); - if (test_bit(STATUS_SCANNING, &priv->status) || - test_bit(STATUS_SCAN_ABORTING, &priv->status)) { - IWL_DEBUG(IWL_DL_SCAN, "Scan completion watchdog resetting " - "adapter (%dms)\n", - jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG)); - - if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) - iwl4965_send_scan_abort(priv); + if (ret) { + if (ret == -EAGAIN) + IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n"); + else + IWL_ERROR("iwl4965_set_mode() failed ret = %d\n", ret); } + mutex_unlock(&priv->mutex); } -static void iwl4965_bg_request_scan(struct work_struct *data) +static void iwl_bg_run_time_calib_work(struct work_struct *work) { - struct iwl_priv *priv = - container_of(data, struct iwl_priv, request_scan); - struct iwl_host_cmd cmd = { - .id = REPLY_SCAN_CMD, - .len = sizeof(struct iwl4965_scan_cmd), - .meta.flags = CMD_SIZE_HUGE, - }; - struct iwl4965_scan_cmd *scan; - struct ieee80211_conf *conf = NULL; - u16 cmd_len; - enum ieee80211_band band; - u8 direct_mask; - int ret = 0; - - conf = ieee80211_get_hw_conf(priv->hw); + struct iwl_priv *priv = container_of(work, struct iwl_priv, + run_time_calib_work); mutex_lock(&priv->mutex); - if (!iwl_is_ready(priv)) { - IWL_WARNING("request scan called when driver not ready.\n"); - goto done; - } - - /* Make sure the scan wasn't cancelled before this queued work - * was given the chance to run... */ - if (!test_bit(STATUS_SCANNING, &priv->status)) - goto done; - - /* This should never be called or scheduled if there is currently - * a scan active in the hardware. */ - if (test_bit(STATUS_SCAN_HW, &priv->status)) { - IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. " - "Ignoring second request.\n"); - ret = -EIO; - goto done; - } - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { - IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n"); - goto done; - } - - if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { - IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n"); - goto done; - } - - if (iwl_is_rfkill(priv)) { - IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n"); - goto done; - } - - if (!test_bit(STATUS_READY, &priv->status)) { - IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n"); - goto done; - } - - if (!priv->scan_bands) { - IWL_DEBUG_HC("Aborting scan due to no requested bands\n"); - goto done; - } - - if (!priv->scan) { - priv->scan = kmalloc(sizeof(struct iwl4965_scan_cmd) + - IWL_MAX_SCAN_SIZE, GFP_KERNEL); - if (!priv->scan) { - ret = -ENOMEM; - goto done; - } - } - scan = priv->scan; - memset(scan, 0, sizeof(struct iwl4965_scan_cmd) + IWL_MAX_SCAN_SIZE); - - scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; - scan->quiet_time = IWL_ACTIVE_QUIET_TIME; - - if (iwl_is_associated(priv)) { - u16 interval = 0; - u32 extra; - u32 suspend_time = 100; - u32 scan_suspend_time = 100; - unsigned long flags; - - IWL_DEBUG_INFO("Scanning while associated...\n"); - - spin_lock_irqsave(&priv->lock, flags); - interval = priv->beacon_int; - spin_unlock_irqrestore(&priv->lock, flags); - - scan->suspend_time = 0; - scan->max_out_time = cpu_to_le32(200 * 1024); - if (!interval) - interval = suspend_time; - - extra = (suspend_time / interval) << 22; - scan_suspend_time = (extra | - ((suspend_time % interval) * 1024)); - scan->suspend_time = cpu_to_le32(scan_suspend_time); - IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n", - scan_suspend_time, interval); - } - - /* We should add the ability for user to lock to PASSIVE ONLY */ - if (priv->one_direct_scan) { - IWL_DEBUG_SCAN - ("Kicking off one direct scan for '%s'\n", - iwl4965_escape_essid(priv->direct_ssid, - priv->direct_ssid_len)); - scan->direct_scan[0].id = WLAN_EID_SSID; - scan->direct_scan[0].len = priv->direct_ssid_len; - memcpy(scan->direct_scan[0].ssid, - priv->direct_ssid, priv->direct_ssid_len); - direct_mask = 1; - } else if (!iwl_is_associated(priv) && priv->essid_len) { - IWL_DEBUG_SCAN - ("Kicking off one direct scan for '%s' when not associated\n", - iwl4965_escape_essid(priv->essid, priv->essid_len)); - scan->direct_scan[0].id = WLAN_EID_SSID; - scan->direct_scan[0].len = priv->essid_len; - memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len); - direct_mask = 1; - } else { - IWL_DEBUG_SCAN("Kicking off one indirect scan.\n"); - direct_mask = 0; + if (test_bit(STATUS_EXIT_PENDING, &priv->status) || + test_bit(STATUS_SCANNING, &priv->status)) { + mutex_unlock(&priv->mutex); + return; } - scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; - scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id; - scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - - - switch (priv->scan_bands) { - case 2: - scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; - scan->tx_cmd.rate_n_flags = - iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP, - RATE_MCS_ANT_B_MSK|RATE_MCS_CCK_MSK); - - scan->good_CRC_th = 0; - band = IEEE80211_BAND_2GHZ; - break; - - case 1: - scan->tx_cmd.rate_n_flags = - iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP, - RATE_MCS_ANT_B_MSK); - scan->good_CRC_th = IWL_GOOD_CRC_TH; - band = IEEE80211_BAND_5GHZ; - break; + if (priv->start_calib) { + iwl_chain_noise_calibration(priv, &priv->statistics); - default: - IWL_WARNING("Invalid scan band count\n"); - goto done; + iwl_sensitivity_calibration(priv, &priv->statistics); } - /* We don't build a direct scan probe request; the uCode will do - * that based on the direct_mask added to each channel entry */ - cmd_len = iwl4965_fill_probe_req(priv, band, - (struct ieee80211_mgmt *)scan->data, - IWL_MAX_SCAN_SIZE - sizeof(*scan), 0); - - scan->tx_cmd.len = cpu_to_le16(cmd_len); - /* select Rx chains */ - - /* Force use of chains B and C (0x6) for scan Rx. - * Avoid A (0x1) because of its off-channel reception on A-band. - * MIMO is not used here, but value is required to make uCode happy. */ - scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK | - cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) | - (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) | - (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS)); - - if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) - scan->filter_flags = RXON_FILTER_PROMISC_MSK; - - if (direct_mask) - scan->channel_count = - iwl4965_get_channels_for_scan( - priv, band, 1, /* active */ - direct_mask, - (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); - else - scan->channel_count = - iwl4965_get_channels_for_scan( - priv, band, 0, /* passive */ - direct_mask, - (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); - - scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK | - RXON_FILTER_BCON_AWARE_MSK); - cmd.len += le16_to_cpu(scan->tx_cmd.len) + - scan->channel_count * sizeof(struct iwl4965_scan_channel); - cmd.data = scan; - scan->len = cpu_to_le16(cmd.len); - - set_bit(STATUS_SCAN_HW, &priv->status); - ret = iwl_send_cmd_sync(priv, &cmd); - if (ret) - goto done; - - queue_delayed_work(priv->workqueue, &priv->scan_check, - IWL_SCAN_CHECK_WATCHDOG); - mutex_unlock(&priv->mutex); return; - - done: - /* inform mac80211 scan aborted */ - queue_work(priv->workqueue, &priv->scan_completed); - mutex_unlock(&priv->mutex); } static void iwl4965_bg_up(struct work_struct *data) @@ -3498,7 +2585,7 @@ static void iwl4965_post_associate(struct iwl_priv *priv) if (!priv->vif || !priv->is_open) return; - iwl4965_scan_cancel_timeout(priv, 200); + iwl_scan_cancel_timeout(priv, 200); conf = ieee80211_get_hw_conf(priv->hw); @@ -3515,10 +2602,9 @@ static void iwl4965_post_associate(struct iwl_priv *priv) priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; -#ifdef CONFIG_IWL4965_HT if (priv->current_ht_config.is_ht) iwl_set_rxon_ht(priv, &priv->current_ht_config); -#endif /* CONFIG_IWL4965_HT*/ + iwl_set_rxon_chain(priv); priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); @@ -3550,10 +2636,9 @@ static void iwl4965_post_associate(struct iwl_priv *priv) case IEEE80211_IF_TYPE_IBSS: - /* clear out the station table */ - iwlcore_clear_stations_table(priv); + /* assume default assoc id */ + priv->assoc_id = 1; - iwl_rxon_add_station(priv, iwl_bcast_addr, 0); iwl_rxon_add_station(priv, priv->bssid, 0); iwl4965_rate_scale_init(priv->hw, IWL_STA_ID); iwl4965_send_beacon_cmd(priv); @@ -3594,29 +2679,14 @@ static void iwl4965_bg_post_associate(struct work_struct *data) } -static void iwl4965_bg_abort_scan(struct work_struct *work) -{ - struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan); - - if (!iwl_is_ready(priv)) - return; - - mutex_lock(&priv->mutex); - - set_bit(STATUS_SCAN_ABORTING, &priv->status); - iwl4965_send_scan_abort(priv); - - mutex_unlock(&priv->mutex); -} - static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); -static void iwl4965_bg_scan_completed(struct work_struct *work) +static void iwl_bg_scan_completed(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, scan_completed); - IWL_DEBUG(IWL_DL_SCAN, "SCAN complete scan\n"); + IWL_DEBUG_SCAN("SCAN complete scan\n"); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; @@ -3629,7 +2699,7 @@ static void iwl4965_bg_scan_completed(struct work_struct *work) /* Since setting the TXPOWER may have been deferred while * performing the scan, fire one off */ mutex_lock(&priv->mutex); - iwl4965_hw_reg_send_txpower(priv); + iwl_set_tx_power(priv, priv->tx_power_user_lmt, true); mutex_unlock(&priv->mutex); } @@ -3738,7 +2808,7 @@ static void iwl4965_mac_stop(struct ieee80211_hw *hw) * RXON_FILTER_ASSOC_MSK BIT */ mutex_lock(&priv->mutex); - iwl4965_scan_cancel_timeout(priv, 100); + iwl_scan_cancel_timeout(priv, 100); cancel_delayed_work(&priv->post_associate); mutex_unlock(&priv->mutex); } @@ -3801,8 +2871,9 @@ static int iwl4965_mac_add_interface(struct ieee80211_hw *hw, memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); } - if (iwl_is_ready(priv)) - iwl4965_set_mode(priv, conf->type); + if (iwl4965_set_mode(priv, conf->type) == -EAGAIN) + /* we are not ready, will run again when ready */ + set_bit(STATUS_MODE_PENDING, &priv->status); mutex_unlock(&priv->mutex); @@ -3830,6 +2901,14 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP); + if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) { + IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n"); + goto out; + } + + if (!conf->radio_enabled) + iwl_radio_kill_sw_disable_radio(priv); + if (!iwl_is_ready(priv)) { IWL_DEBUG_MAC80211("leave - not ready\n"); ret = -EIO; @@ -3852,9 +2931,16 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co goto out; } + if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS && + !is_channel_ibss(ch_info)) { + IWL_ERROR("channel %d in band %d not IBSS channel\n", + conf->channel->hw_value, conf->channel->band); + ret = -EINVAL; + goto out; + } + spin_lock_irqsave(&priv->lock, flags); -#ifdef CONFIG_IWL4965_HT /* if we are switching from ht to 2.4 clear flags * from any ht related info since 2.4 does not * support ht */ @@ -3864,7 +2950,6 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co #endif ) priv->staging_rxon.flags = 0; -#endif /* CONFIG_IWL4965_HT */ iwl_set_rxon_channel(priv, conf->channel->band, channel); @@ -3884,9 +2969,6 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co } #endif - if (priv->cfg->ops->lib->radio_kill_sw) - priv->cfg->ops->lib->radio_kill_sw(priv, !conf->radio_enabled); - if (!conf->radio_enabled) { IWL_DEBUG_MAC80211("leave - radio disabled\n"); goto out; @@ -3898,6 +2980,11 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co goto out; } + IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n", + priv->tx_power_user_lmt, conf->power_level); + + iwl_set_tx_power(priv, conf->power_level, false); + iwl4965_set_rate(priv); if (memcmp(&priv->active_rxon, @@ -4034,7 +3121,7 @@ static int iwl4965_mac_config_interface(struct ieee80211_hw *hw, !is_multicast_ether_addr(conf->bssid)) { /* If there is currently a HW scan going on in the background * then we need to cancel it else the RXON below will fail. */ - if (iwl4965_scan_cancel_timeout(priv, 100)) { + if (iwl_scan_cancel_timeout(priv, 100)) { IWL_WARNING("Aborted scan still in progress " "after 100ms\n"); IWL_DEBUG_MAC80211("leaving - scan abort failed.\n"); @@ -4059,7 +3146,7 @@ static int iwl4965_mac_config_interface(struct ieee80211_hw *hw, } } else { - iwl4965_scan_cancel_timeout(priv, 100); + iwl_scan_cancel_timeout(priv, 100); priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; iwl4965_commit_rxon(priv); } @@ -4117,7 +3204,7 @@ static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw, mutex_lock(&priv->mutex); if (iwl_is_ready_rf(priv)) { - iwl4965_scan_cancel_timeout(priv, 100); + iwl_scan_cancel_timeout(priv, 100); cancel_delayed_work(&priv->post_associate); priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; iwl4965_commit_rxon(priv); @@ -4231,7 +3318,7 @@ static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) } if (len) { IWL_DEBUG_SCAN("direct scan for %s [%d]\n ", - iwl4965_escape_essid(ssid, len), (int)len); + iwl_escape_essid(ssid, len), (int)len); priv->one_direct_scan = 1; priv->direct_ssid_len = (u8) @@ -4240,7 +3327,7 @@ static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) } else priv->one_direct_scan = 0; - rc = iwl4965_scan_initiate(priv); + rc = iwl_scan_initiate(priv); IWL_DEBUG_MAC80211("leave\n"); @@ -4271,7 +3358,7 @@ static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw, return; } - iwl4965_scan_cancel_timeout(priv, 100); + iwl_scan_cancel_timeout(priv, 100); key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); @@ -4329,7 +3416,7 @@ static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, } mutex_lock(&priv->mutex); - iwl4965_scan_cancel_timeout(priv, 100); + iwl_scan_cancel_timeout(priv, 100); mutex_unlock(&priv->mutex); /* If we are getting WEP group key and we didn't receive any key mapping @@ -4489,11 +3576,9 @@ static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw) IWL_DEBUG_MAC80211("enter\n"); priv->lq_mngr.lq_ready = 0; -#ifdef CONFIG_IWL4965_HT spin_lock_irqsave(&priv->lock, flags); memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); spin_unlock_irqrestore(&priv->lock, flags); -#endif /* CONFIG_IWL4965_HT */ iwl_reset_qos(priv); @@ -4527,7 +3612,7 @@ static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw) * clear RXON_FILTER_ASSOC_MSK bit */ if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { - iwl4965_scan_cancel_timeout(priv, 100); + iwl_scan_cancel_timeout(priv, 100); priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; iwl4965_commit_rxon(priv); } @@ -4583,7 +3668,7 @@ static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *sk iwl_reset_qos(priv); - queue_work(priv->workqueue, &priv->post_associate.work); + iwl4965_post_associate(priv); mutex_unlock(&priv->mutex); @@ -4665,7 +3750,7 @@ static ssize_t show_temperature(struct device *d, if (!iwl_is_alive(priv)) return -EAGAIN; - return sprintf(buf, "%d\n", iwl4965_hw_get_temperature(priv)); + return sprintf(buf, "%d\n", priv->temperature); } static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); @@ -4683,7 +3768,7 @@ static ssize_t show_tx_power(struct device *d, struct device_attribute *attr, char *buf) { struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; - return sprintf(buf, "%d\n", priv->user_txpower_limit); + return sprintf(buf, "%d\n", priv->tx_power_user_lmt); } static ssize_t store_tx_power(struct device *d, @@ -4699,7 +3784,7 @@ static ssize_t store_tx_power(struct device *d, printk(KERN_INFO DRV_NAME ": %s is not in decimal form.\n", buf); else - iwl4965_hw_reg_set_txpower(priv, val); + iwl_set_tx_power(priv, val, false); return count; } @@ -4724,7 +3809,7 @@ static ssize_t store_flags(struct device *d, mutex_lock(&priv->mutex); if (le32_to_cpu(priv->staging_rxon.flags) != flags) { /* Cancel any currently running scans... */ - if (iwl4965_scan_cancel_timeout(priv, 100)) + if (iwl_scan_cancel_timeout(priv, 100)) IWL_WARNING("Could not cancel scan.\n"); else { IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n", @@ -4759,7 +3844,7 @@ static ssize_t store_filter_flags(struct device *d, mutex_lock(&priv->mutex); if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { /* Cancel any currently running scans... */ - if (iwl4965_scan_cancel_timeout(priv, 100)) + if (iwl_scan_cancel_timeout(priv, 100)) IWL_WARNING("Could not cancel scan.\n"); else { IWL_DEBUG_INFO("Committing rxon.filter_flags = " @@ -4957,8 +4042,62 @@ static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, static ssize_t show_channels(struct device *d, struct device_attribute *attr, char *buf) { - /* all this shit doesn't belong into sysfs anyway */ - return 0; + + struct iwl_priv *priv = dev_get_drvdata(d); + struct ieee80211_channel *channels = NULL; + const struct ieee80211_supported_band *supp_band = NULL; + int len = 0, i; + int count = 0; + + if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status)) + return -EAGAIN; + + supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ); + channels = supp_band->channels; + count = supp_band->n_channels; + + len += sprintf(&buf[len], + "Displaying %d channels in 2.4GHz band " + "(802.11bg):\n", count); + + for (i = 0; i < count; i++) + len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n", + ieee80211_frequency_to_channel( + channels[i].center_freq), + channels[i].max_power, + channels[i].flags & IEEE80211_CHAN_RADAR ? + " (IEEE 802.11h required)" : "", + (!(channels[i].flags & IEEE80211_CHAN_NO_IBSS) + || (channels[i].flags & + IEEE80211_CHAN_RADAR)) ? "" : + ", IBSS", + channels[i].flags & + IEEE80211_CHAN_PASSIVE_SCAN ? + "passive only" : "active/passive"); + + supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ); + channels = supp_band->channels; + count = supp_band->n_channels; + + len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band " + "(802.11a):\n", count); + + for (i = 0; i < count; i++) + len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n", + ieee80211_frequency_to_channel( + channels[i].center_freq), + channels[i].max_power, + channels[i].flags & IEEE80211_CHAN_RADAR ? + " (IEEE 802.11h required)" : "", + ((channels[i].flags & IEEE80211_CHAN_NO_IBSS) + || (channels[i].flags & + IEEE80211_CHAN_RADAR)) ? "" : + ", IBSS", + channels[i].flags & + IEEE80211_CHAN_PASSIVE_SCAN ? + "passive only" : "active/passive"); + + return len; } static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); @@ -5018,7 +4157,7 @@ static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); * *****************************************************************************/ -static void iwl4965_setup_deferred_work(struct iwl_priv *priv) +static void iwl_setup_deferred_work(struct iwl_priv *priv) { priv->workqueue = create_workqueue(DRV_NAME); @@ -5027,32 +4166,40 @@ static void iwl4965_setup_deferred_work(struct iwl_priv *priv) INIT_WORK(&priv->up, iwl4965_bg_up); INIT_WORK(&priv->restart, iwl4965_bg_restart); INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish); - INIT_WORK(&priv->scan_completed, iwl4965_bg_scan_completed); - INIT_WORK(&priv->request_scan, iwl4965_bg_request_scan); - INIT_WORK(&priv->abort_scan, iwl4965_bg_abort_scan); INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill); INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update); INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor); + INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate); INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start); INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start); - INIT_DELAYED_WORK(&priv->scan_check, iwl4965_bg_scan_check); - iwl4965_hw_setup_deferred_work(priv); + /* FIXME : remove when resolved PENDING */ + INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed); + iwl_setup_scan_deferred_work(priv); + + if (priv->cfg->ops->lib->setup_deferred_work) + priv->cfg->ops->lib->setup_deferred_work(priv); + + init_timer(&priv->statistics_periodic); + priv->statistics_periodic.data = (unsigned long)priv; + priv->statistics_periodic.function = iwl4965_bg_statistics_periodic; tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) iwl4965_irq_tasklet, (unsigned long)priv); } -static void iwl4965_cancel_deferred_work(struct iwl_priv *priv) +static void iwl_cancel_deferred_work(struct iwl_priv *priv) { - iwl4965_hw_cancel_deferred_work(priv); + if (priv->cfg->ops->lib->cancel_deferred_work) + priv->cfg->ops->lib->cancel_deferred_work(priv); cancel_delayed_work_sync(&priv->init_alive_start); cancel_delayed_work(&priv->scan_check); cancel_delayed_work(&priv->alive_start); cancel_delayed_work(&priv->post_associate); cancel_work_sync(&priv->beacon_update); + del_timer_sync(&priv->statistics_periodic); } static struct attribute *iwl4965_sysfs_entries[] = { @@ -5100,9 +4247,7 @@ static struct ieee80211_ops iwl4965_hw_ops = { .reset_tsf = iwl4965_mac_reset_tsf, .beacon_update = iwl4965_mac_beacon_update, .bss_info_changed = iwl4965_bss_info_changed, -#ifdef CONFIG_IWL4965_HT .ampdu_action = iwl4965_mac_ampdu_action, -#endif /* CONFIG_IWL4965_HT */ .hw_scan = iwl4965_mac_hw_scan }; @@ -5266,7 +4411,7 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e } - iwl4965_setup_deferred_work(priv); + iwl_setup_deferred_work(priv); iwl4965_setup_rx_handlers(priv); /******************** @@ -5287,8 +4432,11 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e if (err) IWL_ERROR("failed to create debugfs files\n"); - /* notify iwlcore to init */ - iwlcore_low_level_notify(priv, IWLCORE_INIT_EVT); + err = iwl_rfkill_init(priv); + if (err) + IWL_ERROR("Unable to initialize RFKILL system. " + "Ignoring error: %d\n", err); + iwl_power_initialize(priv); return 0; out_remove_sysfs: @@ -5351,8 +4499,7 @@ static void __devexit iwl4965_pci_remove(struct pci_dev *pdev) } } - iwlcore_low_level_notify(priv, IWLCORE_REMOVE_EVT); - + iwl_rfkill_unregister(priv); iwl4965_dealloc_ucode_pci(priv); if (priv->rxq.bd) |