diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-4965.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.c | 703 |
1 files changed, 1 insertions, 702 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 1688803af58..d8e6d2e6a86 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -1929,707 +1929,6 @@ static void iwl4965_temperature_calib(struct iwl_priv *priv, queue_work(priv->workqueue, &priv->txpower_work); } -static void iwl4965_add_radiotap(struct iwl_priv *priv, - struct sk_buff *skb, - struct iwl4965_rx_phy_res *rx_start, - struct ieee80211_rx_status *stats, - u32 ampdu_status) -{ - s8 signal = stats->signal; - s8 noise = 0; - int rate = stats->rate_idx; - u64 tsf = stats->mactime; - __le16 antenna; - __le16 phy_flags_hw = rx_start->phy_flags; - struct iwl4965_rt_rx_hdr { - struct ieee80211_radiotap_header rt_hdr; - __le64 rt_tsf; /* TSF */ - u8 rt_flags; /* radiotap packet flags */ - u8 rt_rate; /* rate in 500kb/s */ - __le16 rt_channelMHz; /* channel in MHz */ - __le16 rt_chbitmask; /* channel bitfield */ - s8 rt_dbmsignal; /* signal in dBm, kluged to signed */ - s8 rt_dbmnoise; - u8 rt_antenna; /* antenna number */ - } __attribute__ ((packed)) *iwl4965_rt; - - /* TODO: We won't have enough headroom for HT frames. Fix it later. */ - if (skb_headroom(skb) < sizeof(*iwl4965_rt)) { - if (net_ratelimit()) - printk(KERN_ERR "not enough headroom [%d] for " - "radiotap head [%zd]\n", - skb_headroom(skb), sizeof(*iwl4965_rt)); - return; - } - - /* put radiotap header in front of 802.11 header and data */ - iwl4965_rt = (void *)skb_push(skb, sizeof(*iwl4965_rt)); - - /* initialise radiotap header */ - iwl4965_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; - iwl4965_rt->rt_hdr.it_pad = 0; - - /* total header + data */ - put_unaligned(cpu_to_le16(sizeof(*iwl4965_rt)), - &iwl4965_rt->rt_hdr.it_len); - - /* Indicate all the fields we add to the radiotap header */ - put_unaligned(cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) | - (1 << IEEE80211_RADIOTAP_FLAGS) | - (1 << IEEE80211_RADIOTAP_RATE) | - (1 << IEEE80211_RADIOTAP_CHANNEL) | - (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | - (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | - (1 << IEEE80211_RADIOTAP_ANTENNA)), - &iwl4965_rt->rt_hdr.it_present); - - /* Zero the flags, we'll add to them as we go */ - iwl4965_rt->rt_flags = 0; - - put_unaligned(cpu_to_le64(tsf), &iwl4965_rt->rt_tsf); - - iwl4965_rt->rt_dbmsignal = signal; - iwl4965_rt->rt_dbmnoise = noise; - - /* Convert the channel frequency and set the flags */ - put_unaligned(cpu_to_le16(stats->freq), &iwl4965_rt->rt_channelMHz); - if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK)) - put_unaligned(cpu_to_le16(IEEE80211_CHAN_OFDM | - IEEE80211_CHAN_5GHZ), - &iwl4965_rt->rt_chbitmask); - else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK) - put_unaligned(cpu_to_le16(IEEE80211_CHAN_CCK | - IEEE80211_CHAN_2GHZ), - &iwl4965_rt->rt_chbitmask); - else /* 802.11g */ - put_unaligned(cpu_to_le16(IEEE80211_CHAN_OFDM | - IEEE80211_CHAN_2GHZ), - &iwl4965_rt->rt_chbitmask); - - if (rate == -1) - iwl4965_rt->rt_rate = 0; - else - iwl4965_rt->rt_rate = iwl_rates[rate].ieee; - - /* - * "antenna number" - * - * It seems that the antenna field in the phy flags value - * is actually a bitfield. This is undefined by radiotap, - * it wants an actual antenna number but I always get "7" - * for most legacy frames I receive indicating that the - * same frame was received on all three RX chains. - * - * I think this field should be removed in favour of a - * new 802.11n radiotap field "RX chains" that is defined - * as a bitmask. - */ - antenna = phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK; - iwl4965_rt->rt_antenna = le16_to_cpu(antenna) >> 4; - - /* set the preamble flag if appropriate */ - if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) - iwl4965_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; - - stats->flag |= RX_FLAG_RADIOTAP; -} - -static void iwl_update_rx_stats(struct iwl_priv *priv, u16 fc, u16 len) -{ - /* 0 - mgmt, 1 - cnt, 2 - data */ - int idx = (fc & IEEE80211_FCTL_FTYPE) >> 2; - priv->rx_stats[idx].cnt++; - priv->rx_stats[idx].bytes += len; -} - -/* - * returns non-zero if packet should be dropped - */ -static int iwl4965_set_decrypted_flag(struct iwl_priv *priv, - struct ieee80211_hdr *hdr, - u32 decrypt_res, - struct ieee80211_rx_status *stats) -{ - u16 fc = le16_to_cpu(hdr->frame_control); - - if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK) - return 0; - - if (!(fc & IEEE80211_FCTL_PROTECTED)) - return 0; - - IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res); - switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) { - case RX_RES_STATUS_SEC_TYPE_TKIP: - /* The uCode has got a bad phase 1 Key, pushes the packet. - * Decryption will be done in SW. */ - if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == - RX_RES_STATUS_BAD_KEY_TTAK) - break; - - case RX_RES_STATUS_SEC_TYPE_WEP: - if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == - RX_RES_STATUS_BAD_ICV_MIC) { - /* bad ICV, the packet is destroyed since the - * decryption is inplace, drop it */ - IWL_DEBUG_RX("Packet destroyed\n"); - return -1; - } - case RX_RES_STATUS_SEC_TYPE_CCMP: - if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) == - RX_RES_STATUS_DECRYPT_OK) { - IWL_DEBUG_RX("hw decrypt successfully!!!\n"); - stats->flag |= RX_FLAG_DECRYPTED; - } - break; - - default: - break; - } - return 0; -} - -static u32 iwl4965_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in) -{ - u32 decrypt_out = 0; - - if ((decrypt_in & RX_RES_STATUS_STATION_FOUND) == - RX_RES_STATUS_STATION_FOUND) - decrypt_out |= (RX_RES_STATUS_STATION_FOUND | - RX_RES_STATUS_NO_STATION_INFO_MISMATCH); - - decrypt_out |= (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK); - - /* packet was not encrypted */ - if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) == - RX_RES_STATUS_SEC_TYPE_NONE) - return decrypt_out; - - /* packet was encrypted with unknown alg */ - if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) == - RX_RES_STATUS_SEC_TYPE_ERR) - return decrypt_out; - - /* decryption was not done in HW */ - if ((decrypt_in & RX_MPDU_RES_STATUS_DEC_DONE_MSK) != - RX_MPDU_RES_STATUS_DEC_DONE_MSK) - return decrypt_out; - - switch (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) { - - case RX_RES_STATUS_SEC_TYPE_CCMP: - /* alg is CCM: check MIC only */ - if (!(decrypt_in & RX_MPDU_RES_STATUS_MIC_OK)) - /* Bad MIC */ - decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC; - else - decrypt_out |= RX_RES_STATUS_DECRYPT_OK; - - break; - - case RX_RES_STATUS_SEC_TYPE_TKIP: - if (!(decrypt_in & RX_MPDU_RES_STATUS_TTAK_OK)) { - /* Bad TTAK */ - decrypt_out |= RX_RES_STATUS_BAD_KEY_TTAK; - break; - } - /* fall through if TTAK OK */ - default: - if (!(decrypt_in & RX_MPDU_RES_STATUS_ICV_OK)) - decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC; - else - decrypt_out |= RX_RES_STATUS_DECRYPT_OK; - break; - }; - - IWL_DEBUG_RX("decrypt_in:0x%x decrypt_out = 0x%x\n", - decrypt_in, decrypt_out); - - return decrypt_out; -} - -static void iwl4965_handle_data_packet(struct iwl_priv *priv, int is_data, - int include_phy, - struct iwl_rx_mem_buffer *rxb, - struct ieee80211_rx_status *stats) -{ - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - struct iwl4965_rx_phy_res *rx_start = (include_phy) ? - (struct iwl4965_rx_phy_res *)&(pkt->u.raw[0]) : NULL; - struct ieee80211_hdr *hdr; - u16 len; - __le32 *rx_end; - unsigned int skblen; - u32 ampdu_status; - u32 ampdu_status_legacy; - - if (!include_phy && priv->last_phy_res[0]) - rx_start = (struct iwl4965_rx_phy_res *)&priv->last_phy_res[1]; - - if (!rx_start) { - IWL_ERROR("MPDU frame without a PHY data\n"); - return; - } - if (include_phy) { - hdr = (struct ieee80211_hdr *)((u8 *) & rx_start[1] + - rx_start->cfg_phy_cnt); - - len = le16_to_cpu(rx_start->byte_count); - - rx_end = (__le32 *) ((u8 *) & pkt->u.raw[0] + - sizeof(struct iwl4965_rx_phy_res) + - rx_start->cfg_phy_cnt + len); - - } else { - struct iwl4965_rx_mpdu_res_start *amsdu = - (struct iwl4965_rx_mpdu_res_start *)pkt->u.raw; - - hdr = (struct ieee80211_hdr *)(pkt->u.raw + - sizeof(struct iwl4965_rx_mpdu_res_start)); - len = le16_to_cpu(amsdu->byte_count); - rx_start->byte_count = amsdu->byte_count; - rx_end = (__le32 *) (((u8 *) hdr) + len); - } - /* In monitor mode allow 802.11 ACk frames (10 bytes) */ - if (len > priv->hw_params.max_pkt_size || - len < ((priv->iw_mode == IEEE80211_IF_TYPE_MNTR) ? 10 : 16)) { - IWL_WARNING("byte count out of range [16,4K] : %d\n", len); - return; - } - - ampdu_status = le32_to_cpu(*rx_end); - skblen = ((u8 *) rx_end - (u8 *) & pkt->u.raw[0]) + sizeof(u32); - - if (!include_phy) { - /* New status scheme, need to translate */ - ampdu_status_legacy = ampdu_status; - ampdu_status = iwl4965_translate_rx_status(priv, ampdu_status); - } - - /* start from MAC */ - skb_reserve(rxb->skb, (void *)hdr - (void *)pkt); - skb_put(rxb->skb, len); /* end where data ends */ - - /* We only process data packets if the interface is open */ - if (unlikely(!priv->is_open)) { - IWL_DEBUG_DROP_LIMIT - ("Dropping packet while interface is not open.\n"); - return; - } - - stats->flag = 0; - hdr = (struct ieee80211_hdr *)rxb->skb->data; - - /* in case of HW accelerated crypto and bad decryption, drop */ - if (!priv->hw_params.sw_crypto && - iwl4965_set_decrypted_flag(priv, hdr, ampdu_status, stats)) - return; - - if (priv->add_radiotap) - iwl4965_add_radiotap(priv, rxb->skb, rx_start, stats, ampdu_status); - - iwl_update_rx_stats(priv, le16_to_cpu(hdr->frame_control), len); - ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats); - priv->alloc_rxb_skb--; - rxb->skb = NULL; -} - -/* Calc max signal level (dBm) among 3 possible receivers */ -static int iwl4965_calc_rssi(struct iwl_priv *priv, - struct iwl4965_rx_phy_res *rx_resp) -{ - /* data from PHY/DSP regarding signal strength, etc., - * contents are always there, not configurable by host. */ - struct iwl4965_rx_non_cfg_phy *ncphy = - (struct iwl4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy; - u32 agc = (le16_to_cpu(ncphy->agc_info) & IWL_AGC_DB_MASK) - >> IWL_AGC_DB_POS; - - u32 valid_antennae = - (le16_to_cpu(rx_resp->phy_flags) & RX_PHY_FLAGS_ANTENNAE_MASK) - >> RX_PHY_FLAGS_ANTENNAE_OFFSET; - u8 max_rssi = 0; - u32 i; - - /* Find max rssi among 3 possible receivers. - * These values are measured by the digital signal processor (DSP). - * They should stay fairly constant even as the signal strength varies, - * if the radio's automatic gain control (AGC) is working right. - * AGC value (see below) will provide the "interesting" info. */ - for (i = 0; i < 3; i++) - if (valid_antennae & (1 << i)) - max_rssi = max(ncphy->rssi_info[i << 1], max_rssi); - - IWL_DEBUG_STATS("Rssi In A %d B %d C %d Max %d AGC dB %d\n", - ncphy->rssi_info[0], ncphy->rssi_info[2], ncphy->rssi_info[4], - max_rssi, agc); - - /* dBm = max_rssi dB - agc dB - constant. - * Higher AGC (higher radio gain) means lower signal. */ - return (max_rssi - agc - IWL_RSSI_OFFSET); -} - -static void iwl4965_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) -{ - unsigned long flags; - - spin_lock_irqsave(&priv->sta_lock, flags); - priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK; - priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK; - priv->stations[sta_id].sta.sta.modify_mask = 0; - priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; - spin_unlock_irqrestore(&priv->sta_lock, flags); - - iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); -} - -static void iwl4965_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr) -{ - /* FIXME: need locking over ps_status ??? */ - u8 sta_id = iwl_find_station(priv, addr); - - if (sta_id != IWL_INVALID_STATION) { - u8 sta_awake = priv->stations[sta_id]. - ps_status == STA_PS_STATUS_WAKE; - - if (sta_awake && ps_bit) - priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP; - else if (!sta_awake && !ps_bit) { - iwl4965_sta_modify_ps_wake(priv, sta_id); - priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE; - } - } -} -#ifdef CONFIG_IWLWIFI_DEBUG - -/** - * iwl4965_dbg_report_frame - dump frame to syslog during debug sessions - * - * You may hack this function to show different aspects of received frames, - * including selective frame dumps. - * group100 parameter selects whether to show 1 out of 100 good frames. - * - * TODO: This was originally written for 3945, need to audit for - * proper operation with 4965. - */ -static void iwl4965_dbg_report_frame(struct iwl_priv *priv, - struct iwl_rx_packet *pkt, - struct ieee80211_hdr *header, int group100) -{ - u32 to_us; - u32 print_summary = 0; - u32 print_dump = 0; /* set to 1 to dump all frames' contents */ - u32 hundred = 0; - u32 dataframe = 0; - __le16 fc; - u16 seq_ctl; - u16 channel; - u16 phy_flags; - int rate_sym; - u16 length; - u16 status; - u16 bcn_tmr; - u32 tsf_low; - u64 tsf; - u8 rssi; - u8 agc; - u16 sig_avg; - u16 noise_diff; - struct iwl4965_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt); - struct iwl4965_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); - struct iwl4965_rx_frame_end *rx_end = IWL_RX_END(pkt); - u8 *data = IWL_RX_DATA(pkt); - - if (likely(!(priv->debug_level & IWL_DL_RX))) - return; - - /* MAC header */ - fc = header->frame_control; - seq_ctl = le16_to_cpu(header->seq_ctrl); - - /* metadata */ - channel = le16_to_cpu(rx_hdr->channel); - phy_flags = le16_to_cpu(rx_hdr->phy_flags); - rate_sym = rx_hdr->rate; - length = le16_to_cpu(rx_hdr->len); - - /* end-of-frame status and timestamp */ - status = le32_to_cpu(rx_end->status); - bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp); - tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff; - tsf = le64_to_cpu(rx_end->timestamp); - - /* signal statistics */ - rssi = rx_stats->rssi; - agc = rx_stats->agc; - sig_avg = le16_to_cpu(rx_stats->sig_avg); - noise_diff = le16_to_cpu(rx_stats->noise_diff); - - to_us = !compare_ether_addr(header->addr1, priv->mac_addr); - - /* if data frame is to us and all is good, - * (optionally) print summary for only 1 out of every 100 */ - if (to_us && (fc & ~cpu_to_le16(IEEE80211_FCTL_PROTECTED)) == - cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) { - dataframe = 1; - if (!group100) - print_summary = 1; /* print each frame */ - else if (priv->framecnt_to_us < 100) { - priv->framecnt_to_us++; - print_summary = 0; - } else { - priv->framecnt_to_us = 0; - print_summary = 1; - hundred = 1; - } - } else { - /* print summary for all other frames */ - print_summary = 1; - } - - if (print_summary) { - char *title; - int rate_idx; - u32 bitrate; - - if (hundred) - title = "100Frames"; - else if (ieee80211_has_retry(fc)) - title = "Retry"; - else if (ieee80211_is_assoc_resp(fc)) - title = "AscRsp"; - else if (ieee80211_is_reassoc_resp(fc)) - title = "RasRsp"; - else if (ieee80211_is_probe_resp(fc)) { - title = "PrbRsp"; - print_dump = 1; /* dump frame contents */ - } else if (ieee80211_is_beacon(fc)) { - title = "Beacon"; - print_dump = 1; /* dump frame contents */ - } else if (ieee80211_is_atim(fc)) - title = "ATIM"; - else if (ieee80211_is_auth(fc)) - title = "Auth"; - else if (ieee80211_is_deauth(fc)) - title = "DeAuth"; - else if (ieee80211_is_disassoc(fc)) - title = "DisAssoc"; - else - title = "Frame"; - - rate_idx = iwl_hwrate_to_plcp_idx(rate_sym); - if (unlikely(rate_idx == -1)) - bitrate = 0; - else - bitrate = iwl_rates[rate_idx].ieee / 2; - - /* print frame summary. - * MAC addresses show just the last byte (for brevity), - * but you can hack it to show more, if you'd like to. */ - if (dataframe) - IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, " - "len=%u, rssi=%d, chnl=%d, rate=%u, \n", - title, le16_to_cpu(fc), header->addr1[5], - length, rssi, channel, bitrate); - else { - /* src/dst addresses assume managed mode */ - IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, " - "src=0x%02x, rssi=%u, tim=%lu usec, " - "phy=0x%02x, chnl=%d\n", - title, le16_to_cpu(fc), header->addr1[5], - header->addr3[5], rssi, - tsf_low - priv->scan_start_tsf, - phy_flags, channel); - } - } - if (print_dump) - iwl_print_hex_dump(priv, IWL_DL_RX, data, length); -} -#else -static inline void iwl4965_dbg_report_frame(struct iwl_priv *priv, - struct iwl_rx_packet *pkt, - struct ieee80211_hdr *header, - int group100) -{ -} -#endif - - - -/* Called for REPLY_RX (legacy ABG frames), or - * REPLY_RX_MPDU_CMD (HT high-throughput N frames). */ -void iwl4965_rx_reply_rx(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct ieee80211_hdr *header; - struct ieee80211_rx_status rx_status; - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - /* Use phy data (Rx signal strength, etc.) contained within - * this rx packet for legacy frames, - * or phy data cached from REPLY_RX_PHY_CMD for HT frames. */ - int include_phy = (pkt->hdr.cmd == REPLY_RX); - struct iwl4965_rx_phy_res *rx_start = (include_phy) ? - (struct iwl4965_rx_phy_res *)&(pkt->u.raw[0]) : - (struct iwl4965_rx_phy_res *)&priv->last_phy_res[1]; - __le32 *rx_end; - unsigned int len = 0; - u16 fc; - u8 network_packet; - - rx_status.mactime = le64_to_cpu(rx_start->timestamp); - rx_status.freq = - ieee80211_channel_to_frequency(le16_to_cpu(rx_start->channel)); - rx_status.band = (rx_start->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? - IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; - rx_status.rate_idx = - iwl_hwrate_to_plcp_idx(le32_to_cpu(rx_start->rate_n_flags)); - if (rx_status.band == IEEE80211_BAND_5GHZ) - rx_status.rate_idx -= IWL_FIRST_OFDM_RATE; - - rx_status.antenna = 0; - rx_status.flag = 0; - - if ((unlikely(rx_start->cfg_phy_cnt > 20))) { - IWL_DEBUG_DROP("dsp size out of range [0,20]: %d/n", - rx_start->cfg_phy_cnt); - return; - } - - if (!include_phy) { - if (priv->last_phy_res[0]) - rx_start = (struct iwl4965_rx_phy_res *) - &priv->last_phy_res[1]; - else - rx_start = NULL; - } - - if (!rx_start) { - IWL_ERROR("MPDU frame without a PHY data\n"); - return; - } - - if (include_phy) { - header = (struct ieee80211_hdr *)((u8 *) & rx_start[1] - + rx_start->cfg_phy_cnt); - - len = le16_to_cpu(rx_start->byte_count); - rx_end = (__le32 *)(pkt->u.raw + rx_start->cfg_phy_cnt + - sizeof(struct iwl4965_rx_phy_res) + len); - } else { - struct iwl4965_rx_mpdu_res_start *amsdu = - (struct iwl4965_rx_mpdu_res_start *)pkt->u.raw; - - header = (void *)(pkt->u.raw + - sizeof(struct iwl4965_rx_mpdu_res_start)); - len = le16_to_cpu(amsdu->byte_count); - rx_end = (__le32 *) (pkt->u.raw + - sizeof(struct iwl4965_rx_mpdu_res_start) + len); - } - - if (!(*rx_end & RX_RES_STATUS_NO_CRC32_ERROR) || - !(*rx_end & RX_RES_STATUS_NO_RXE_OVERFLOW)) { - IWL_DEBUG_RX("Bad CRC or FIFO: 0x%08X.\n", - le32_to_cpu(*rx_end)); - return; - } - - priv->ucode_beacon_time = le32_to_cpu(rx_start->beacon_time_stamp); - - /* Find max signal strength (dBm) among 3 antenna/receiver chains */ - rx_status.signal = iwl4965_calc_rssi(priv, rx_start); - - /* Meaningful noise values are available only from beacon statistics, - * which are gathered only when associated, and indicate noise - * only for the associated network channel ... - * Ignore these noise values while scanning (other channels) */ - if (iwl_is_associated(priv) && - !test_bit(STATUS_SCANNING, &priv->status)) { - rx_status.noise = priv->last_rx_noise; - rx_status.qual = iwl4965_calc_sig_qual(rx_status.signal, - rx_status.noise); - } else { - rx_status.noise = IWL_NOISE_MEAS_NOT_AVAILABLE; - rx_status.qual = iwl4965_calc_sig_qual(rx_status.signal, 0); - } - - /* Reset beacon noise level if not associated. */ - if (!iwl_is_associated(priv)) - priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE; - - /* Set "1" to report good data frames in groups of 100 */ - /* FIXME: need to optimze the call: */ - iwl4965_dbg_report_frame(priv, pkt, header, 1); - - IWL_DEBUG_STATS_LIMIT("Rssi %d, noise %d, qual %d, TSF %llu\n", - rx_status.signal, rx_status.noise, rx_status.signal, - (unsigned long long)rx_status.mactime); - - - if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { - iwl4965_handle_data_packet(priv, 1, include_phy, - rxb, &rx_status); - return; - } - - network_packet = iwl4965_is_network_packet(priv, header); - if (network_packet) { - priv->last_rx_rssi = rx_status.signal; - priv->last_beacon_time = priv->ucode_beacon_time; - priv->last_tsf = le64_to_cpu(rx_start->timestamp); - } - - fc = le16_to_cpu(header->frame_control); - switch (fc & IEEE80211_FCTL_FTYPE) { - case IEEE80211_FTYPE_MGMT: - if (priv->iw_mode == IEEE80211_IF_TYPE_AP) - iwl4965_update_ps_mode(priv, fc & IEEE80211_FCTL_PM, - header->addr2); - iwl4965_handle_data_packet(priv, 0, include_phy, rxb, &rx_status); - break; - - case IEEE80211_FTYPE_CTL: - switch (fc & IEEE80211_FCTL_STYPE) { - case IEEE80211_STYPE_BACK_REQ: - IWL_DEBUG_HT("IEEE80211_STYPE_BACK_REQ arrived\n"); - iwl4965_handle_data_packet(priv, 0, include_phy, - rxb, &rx_status); - break; - default: - break; - } - break; - - case IEEE80211_FTYPE_DATA: { - DECLARE_MAC_BUF(mac1); - DECLARE_MAC_BUF(mac2); - DECLARE_MAC_BUF(mac3); - - if (priv->iw_mode == IEEE80211_IF_TYPE_AP) - iwl4965_update_ps_mode(priv, fc & IEEE80211_FCTL_PM, - header->addr2); - - if (unlikely(!network_packet)) - IWL_DEBUG_DROP("Dropping (non network): " - "%s, %s, %s\n", - print_mac(mac1, header->addr1), - print_mac(mac2, header->addr2), - print_mac(mac3, header->addr3)); - else if (unlikely(iwl4965_is_duplicate_packet(priv, header))) - IWL_DEBUG_DROP("Dropping (dup): %s, %s, %s\n", - print_mac(mac1, header->addr1), - print_mac(mac2, header->addr2), - print_mac(mac3, header->addr3)); - else - iwl4965_handle_data_packet(priv, 1, include_phy, rxb, - &rx_status); - break; - } - default: - break; - - } -} - /** * iwl4965_tx_status_reply_compressed_ba - Update tx status from block-ack * @@ -3253,7 +2552,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, static void iwl4965_rx_handler_setup(struct iwl_priv *priv) { /* Legacy Rx frames */ - priv->rx_handlers[REPLY_RX] = iwl4965_rx_reply_rx; + priv->rx_handlers[REPLY_RX] = iwl_rx_reply_rx; /* Tx response */ priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx; /* block ack */ |