diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl4965-base.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl4965-base.c | 1670 |
1 files changed, 143 insertions, 1527 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index 55ca752ae9e..c71daec8c74 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -53,8 +53,6 @@ #include "iwl-sta.h" #include "iwl-calib.h" -static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv *priv, - struct iwl_tx_queue *txq); /****************************************************************************** * @@ -89,22 +87,6 @@ MODULE_VERSION(DRV_VERSION); MODULE_AUTHOR(DRV_COPYRIGHT); MODULE_LICENSE("GPL"); -__le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr) -{ - u16 fc = le16_to_cpu(hdr->frame_control); - int hdr_len = ieee80211_get_hdrlen(fc); - - if ((fc & 0x00cc) == (IEEE80211_STYPE_QOS_DATA | IEEE80211_FTYPE_DATA)) - return (__le16 *) ((u8 *) hdr + hdr_len - QOS_CONTROL_LEN); - return NULL; -} - -static const struct ieee80211_supported_band *iwl_get_hw_mode( - struct iwl_priv *priv, enum ieee80211_band band) -{ - return priv->hw->wiphy->bands[band]; -} - static int iwl4965_is_empty_essid(const char *essid, int essid_len) { /* Single white space is for Linksys APs */ @@ -145,70 +127,6 @@ static const char *iwl4965_escape_essid(const char *essid, u8 essid_len) return escaped; } - -/*************** DMA-QUEUE-GENERAL-FUNCTIONS ***** - * DMA services - * - * Theory of operation - * - * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer - * of buffer descriptors, each of which points to one or more data buffers for - * the device to read from or fill. Driver and device exchange status of each - * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty - * entries in each circular buffer, to protect against confusing empty and full - * queue states. - * - * The device reads or writes the data in the queues via the device's several - * DMA/FIFO channels. Each queue is mapped to a single DMA channel. - * - * For Tx queue, there are low mark and high mark limits. If, after queuing - * the packet for Tx, free space become < low mark, Tx queue stopped. When - * reclaiming packets (on 'tx done IRQ), if free space become > high mark, - * Tx queue resumed. - * - * The 4965 operates with up to 17 queues: One receive queue, one transmit - * queue (#4) for sending commands to the device firmware, and 15 other - * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels. - * - * See more detailed info in iwl-4965-hw.h. - ***************************************************/ - -int iwl4965_queue_space(const struct iwl4965_queue *q) -{ - int s = q->read_ptr - q->write_ptr; - - if (q->read_ptr > q->write_ptr) - s -= q->n_bd; - - if (s <= 0) - s += q->n_window; - /* keep some reserve to not confuse empty and full situations */ - s -= 2; - if (s < 0) - s = 0; - return s; -} - - -static inline int x2_queue_used(const struct iwl4965_queue *q, int i) -{ - return q->write_ptr > q->read_ptr ? - (i >= q->read_ptr && i < q->write_ptr) : - !(i < q->read_ptr && i >= q->write_ptr); -} - -static inline u8 get_cmd_index(struct iwl4965_queue *q, u32 index, int is_huge) -{ - /* This is for scan command, the big buffer at end of command array */ - if (is_huge) - return q->n_window; /* must be power of 2 */ - - /* Otherwise, use normal size buffers */ - return index & (q->n_window - 1); -} - -const u8 iwl4965_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; - /*************** STATION TABLE MANAGEMENT **** * mac80211 should be examined to determine if sta_info is duplicating * the functionality provided here @@ -216,213 +134,11 @@ const u8 iwl4965_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF /**************************************************************/ -#if 0 /* temporary disable till we add real remove station */ -/** - * iwl4965_remove_station - Remove driver's knowledge of station. - * - * NOTE: This does not remove station from device's station table. - */ -static u8 iwl4965_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap) -{ - int index = IWL_INVALID_STATION; - int i; - unsigned long flags; - - spin_lock_irqsave(&priv->sta_lock, flags); - if (is_ap) - index = IWL_AP_ID; - else if (is_broadcast_ether_addr(addr)) - index = priv->hw_params.bcast_sta_id; - else - for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) - if (priv->stations[i].used && - !compare_ether_addr(priv->stations[i].sta.sta.addr, - addr)) { - index = i; - break; - } - - if (unlikely(index == IWL_INVALID_STATION)) - goto out; - - if (priv->stations[index].used) { - priv->stations[index].used = 0; - priv->num_stations--; - } - - BUG_ON(priv->num_stations < 0); - -out: - spin_unlock_irqrestore(&priv->sta_lock, flags); - return 0; -} -#endif - -/** - * iwl4965_add_station_flags - Add station to tables in driver and device - */ -u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr, - int is_ap, u8 flags, void *ht_data) -{ - int i; - int index = IWL_INVALID_STATION; - struct iwl_station_entry *station; - unsigned long flags_spin; - DECLARE_MAC_BUF(mac); - - spin_lock_irqsave(&priv->sta_lock, flags_spin); - if (is_ap) - index = IWL_AP_ID; - else if (is_broadcast_ether_addr(addr)) - index = priv->hw_params.bcast_sta_id; - else - for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) { - if (!compare_ether_addr(priv->stations[i].sta.sta.addr, - addr)) { - index = i; - break; - } - - if (!priv->stations[i].used && - index == IWL_INVALID_STATION) - index = i; - } - - - /* These two conditions have the same outcome, but keep them separate - since they have different meanings */ - if (unlikely(index == IWL_INVALID_STATION)) { - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); - return index; - } - - if (priv->stations[index].used && - !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) { - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); - return index; - } - - - IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index, print_mac(mac, addr)); - station = &priv->stations[index]; - station->used = 1; - priv->num_stations++; - - /* Set up the REPLY_ADD_STA command to send to device */ - memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd)); - memcpy(station->sta.sta.addr, addr, ETH_ALEN); - station->sta.mode = 0; - station->sta.sta.sta_id = index; - station->sta.station_flags = 0; - -#ifdef CONFIG_IWL4965_HT - /* BCAST station and IBSS stations do not work in HT mode */ - if (index != priv->hw_params.bcast_sta_id && - priv->iw_mode != IEEE80211_IF_TYPE_IBSS) - iwl4965_set_ht_add_station(priv, index, - (struct ieee80211_ht_info *) ht_data); -#endif /*CONFIG_IWL4965_HT*/ - - spin_unlock_irqrestore(&priv->sta_lock, flags_spin); - - /* Add station to device's station table */ - iwl_send_add_sta(priv, &station->sta, flags); - return index; - -} - - - -/*************** HOST COMMAND QUEUE FUNCTIONS *****/ - -/** - * iwl4965_enqueue_hcmd - enqueue a uCode command - * @priv: device private data point - * @cmd: a point to the ucode command structure - * - * The function returns < 0 values to indicate the operation is - * failed. On success, it turns the index (> 0) of command in the - * command queue. - */ -int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) -{ - struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM]; - struct iwl4965_queue *q = &txq->q; - struct iwl_tfd_frame *tfd; - u32 *control_flags; - struct iwl_cmd *out_cmd; - u32 idx; - u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr)); - dma_addr_t phys_addr; - int ret; - unsigned long flags; - - /* If any of the command structures end up being larger than - * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then - * we will need to increase the size of the TFD entries */ - BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) && - !(cmd->meta.flags & CMD_SIZE_HUGE)); - - if (iwl_is_rfkill(priv)) { - IWL_DEBUG_INFO("Not sending command - RF KILL"); - return -EIO; - } - - if (iwl4965_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) { - IWL_ERROR("No space for Tx\n"); - return -ENOSPC; - } - - spin_lock_irqsave(&priv->hcmd_lock, flags); - - tfd = &txq->bd[q->write_ptr]; - memset(tfd, 0, sizeof(*tfd)); - - control_flags = (u32 *) tfd; - - idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE); - out_cmd = &txq->cmd[idx]; - - out_cmd->hdr.cmd = cmd->id; - memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta)); - memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len); - - /* At this point, the out_cmd now has all of the incoming cmd - * information */ - - out_cmd->hdr.flags = 0; - out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) | - INDEX_TO_SEQ(q->write_ptr)); - if (out_cmd->meta.flags & CMD_SIZE_HUGE) - out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME); - - phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx + - offsetof(struct iwl_cmd, hdr); - iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size); - - IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, " - "%d bytes at %d[%d]:%d\n", - get_cmd_string(out_cmd->hdr.cmd), - out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence), - fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM); - - txq->need_update = 1; - - /* Set up entry in queue's byte count circular buffer */ - priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, 0); - - /* Increment and update queue's write index */ - q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); - ret = iwl4965_tx_queue_update_write_ptr(priv, txq); - - spin_unlock_irqrestore(&priv->hcmd_lock, flags); - return ret ? ret : idx; -} static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) { - struct iwl4965_rxon_cmd *rxon = &priv->staging_rxon; + struct iwl_rxon_cmd *rxon = &priv->staging_rxon; if (hw_decrypt) rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; @@ -432,45 +148,13 @@ static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) } /** - * iwl4965_rxon_add_station - add station into station table. - * - * there is only one AP station with id= IWL_AP_ID - * NOTE: mutex must be held before calling this fnction - */ -static int iwl4965_rxon_add_station(struct iwl_priv *priv, - const u8 *addr, int is_ap) -{ - u8 sta_id; - - /* Add station to device's station table */ -#ifdef CONFIG_IWL4965_HT - struct ieee80211_conf *conf = &priv->hw->conf; - struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf; - - if ((is_ap) && - (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) && - (priv->iw_mode == IEEE80211_IF_TYPE_STA)) - sta_id = iwl4965_add_station_flags(priv, addr, is_ap, - 0, cur_ht_config); - else -#endif /* CONFIG_IWL4965_HT */ - sta_id = iwl4965_add_station_flags(priv, addr, is_ap, - 0, NULL); - - /* Set up default rate scaling table in device's station table */ - iwl4965_add_station(priv, addr, is_ap); - - return sta_id; -} - -/** * iwl4965_check_rxon_cmd - validate RXON structure is valid * * NOTE: This is really only useful during development and can eventually * be #ifdef'd out once the driver is stable and folks aren't actively * making changes */ -static int iwl4965_check_rxon_cmd(struct iwl4965_rxon_cmd *rxon) +static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd *rxon) { int error = 0; int counter = 1; @@ -595,7 +279,7 @@ static int iwl4965_full_rxon_required(struct iwl_priv *priv) static int iwl4965_commit_rxon(struct iwl_priv *priv) { /* cast away the const for active_rxon in this function */ - struct iwl4965_rxon_cmd *active_rxon = (void *)&priv->active_rxon; + struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon; DECLARE_MAC_BUF(mac); int rc = 0; @@ -640,7 +324,7 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv) active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; rc = iwl_send_cmd_pdu(priv, REPLY_RXON, - sizeof(struct iwl4965_rxon_cmd), + sizeof(struct iwl_rxon_cmd), &priv->active_rxon); /* If the mask clearing failed then we set @@ -665,12 +349,13 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv) iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto); /* Apply the new configuration */ rc = iwl_send_cmd_pdu(priv, REPLY_RXON, - sizeof(struct iwl4965_rxon_cmd), &priv->staging_rxon); + sizeof(struct iwl_rxon_cmd), &priv->staging_rxon); if (rc) { IWL_ERROR("Error setting new configuration (%d).\n", rc); return rc; } + iwl_remove_station(priv, iwl_bcast_addr, 0); iwlcore_clear_stations_table(priv); if (!priv->error_recovering) @@ -689,7 +374,7 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv) } /* Add the broadcast address so we can send broadcast frames */ - if (iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0) == + if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) == IWL_INVALID_STATION) { IWL_ERROR("Error adding BROADCAST address for transmit.\n"); return -EIO; @@ -699,7 +384,7 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv) * add the IWL_AP_ID to the station rate table */ if (iwl_is_associated(priv) && (priv->iw_mode == IEEE80211_IF_TYPE_STA)) { - if (iwl4965_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1) + if (iwl_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1) == IWL_INVALID_STATION) { IWL_ERROR("Error adding AP address for transmit.\n"); return -EIO; @@ -797,7 +482,7 @@ static int iwl4965_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_fla return iwl_send_cmd(priv, &cmd); } -static void iwl4965_clear_free_frames(struct iwl_priv *priv) +static void iwl_clear_free_frames(struct iwl_priv *priv) { struct list_head *element; @@ -807,7 +492,7 @@ static void iwl4965_clear_free_frames(struct iwl_priv *priv) while (!list_empty(&priv->free_frames)) { element = priv->free_frames.next; list_del(element); - kfree(list_entry(element, struct iwl4965_frame, list)); + kfree(list_entry(element, struct iwl_frame, list)); priv->frames_count--; } @@ -818,9 +503,9 @@ static void iwl4965_clear_free_frames(struct iwl_priv *priv) } } -static struct iwl4965_frame *iwl4965_get_free_frame(struct iwl_priv *priv) +static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv) { - struct iwl4965_frame *frame; + struct iwl_frame *frame; struct list_head *element; if (list_empty(&priv->free_frames)) { frame = kzalloc(sizeof(*frame), GFP_KERNEL); @@ -835,10 +520,10 @@ static struct iwl4965_frame *iwl4965_get_free_frame(struct iwl_priv *priv) element = priv->free_frames.next; list_del(element); - return list_entry(element, struct iwl4965_frame, list); + return list_entry(element, struct iwl_frame, list); } -static void iwl4965_free_frame(struct iwl_priv *priv, struct iwl4965_frame *frame) +static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) { memset(frame, 0, sizeof(*frame)); list_add(&frame->list, &priv->free_frames); @@ -875,9 +560,9 @@ static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv) /* Find lowest valid rate */ for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; - i = iwl4965_rates[i].next_ieee) { + i = iwl_rates[i].next_ieee) { if (rate_mask & (1 << i)) - return iwl4965_rates[i].plcp; + return iwl_rates[i].plcp; } /* No valid rate was found. Assign the lowest one */ @@ -889,12 +574,12 @@ static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv) static int iwl4965_send_beacon_cmd(struct iwl_priv *priv) { - struct iwl4965_frame *frame; + struct iwl_frame *frame; unsigned int frame_size; int rc; u8 rate; - frame = iwl4965_get_free_frame(priv); + frame = iwl_get_free_frame(priv); if (!frame) { IWL_ERROR("Could not obtain free frame buffer for beacon " @@ -909,7 +594,7 @@ static int iwl4965_send_beacon_cmd(struct iwl_priv *priv) rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, &frame->u.cmd[0]); - iwl4965_free_frame(priv, frame); + iwl_free_frame(priv, frame); return rc; } @@ -936,7 +621,7 @@ static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate, for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { if (bit & supported_rate) { ret_rates |= bit; - rates[*cnt] = iwl4965_rates[i].ieee | + rates[*cnt] = iwl_rates[i].ieee | ((bit & basic_rate) ? 0x80 : 0x00); (*cnt)++; (*left)--; @@ -967,9 +652,9 @@ static void iwl4965_ht_conf(struct iwl_priv *priv, priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2); if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) - iwl_conf->sgf |= 0x1; + iwl_conf->sgf |= HT_SHORT_GI_20MHZ; if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) - iwl_conf->sgf |= 0x2; + iwl_conf->sgf |= HT_SHORT_GI_40MHZ; iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD); iwl_conf->max_amsdu_size = @@ -1056,9 +741,9 @@ static u16 iwl4965_fill_probe_req(struct iwl_priv *priv, len += 24; frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); - memcpy(frame->da, iwl4965_broadcast_addr, ETH_ALEN); + memcpy(frame->da, iwl_bcast_addr, ETH_ALEN); memcpy(frame->sa, priv->mac_addr, ETH_ALEN); - memcpy(frame->bssid, iwl4965_broadcast_addr, ETH_ALEN); + memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN); frame->seq_ctrl = 0; /* fill in our indirect SSID IE */ @@ -1224,33 +909,7 @@ int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *heade return 1; } -#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x - -static const char *iwl4965_get_tx_fail_reason(u32 status) -{ - switch (status & TX_STATUS_MSK) { - case TX_STATUS_SUCCESS: - return "SUCCESS"; - TX_STATUS_ENTRY(SHORT_LIMIT); - TX_STATUS_ENTRY(LONG_LIMIT); - TX_STATUS_ENTRY(FIFO_UNDERRUN); - TX_STATUS_ENTRY(MGMNT_ABORT); - TX_STATUS_ENTRY(NEXT_FRAG); - TX_STATUS_ENTRY(LIFE_EXPIRE); - TX_STATUS_ENTRY(DEST_PS); - TX_STATUS_ENTRY(ABORTED); - TX_STATUS_ENTRY(BT_RETRY); - TX_STATUS_ENTRY(STA_INVALID); - TX_STATUS_ENTRY(FRAG_DROPPED); - TX_STATUS_ENTRY(TID_DISABLE); - TX_STATUS_ENTRY(FRAME_FLUSHED); - TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL); - TX_STATUS_ENTRY(TX_LOCKED); - TX_STATUS_ENTRY(NO_BEACON_ON_RADAR); - } - return "UNKNOWN"; -} /** * iwl4965_scan_cancel - Cancel any currently executing HW scan @@ -1425,8 +1084,8 @@ static int iwl4965_scan_initiate(struct iwl_priv *priv) } -static void iwl4965_set_flags_for_phymode(struct iwl_priv *priv, - enum ieee80211_band band) +static void iwl_set_flags_for_band(struct iwl_priv *priv, + enum ieee80211_band band) { if (band == IEEE80211_BAND_5GHZ) { priv->staging_rxon.flags &= @@ -1511,7 +1170,7 @@ static void iwl4965_connection_init_rx_config(struct iwl_priv *priv) priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); priv->band = ch_info->band; - iwl4965_set_flags_for_phymode(priv, priv->band); + iwl_set_flags_for_band(priv, priv->band); priv->staging_rxon.ofdm_basic_rates = (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; @@ -1566,441 +1225,6 @@ static int iwl4965_set_mode(struct iwl_priv *priv, int mode) return 0; } -static void iwl4965_build_tx_cmd_hwcrypto(struct iwl_priv *priv, - struct ieee80211_tx_control *ctl, - struct iwl_cmd *cmd, - struct sk_buff *skb_frag, - int sta_id) -{ - struct iwl_hw_key *keyinfo = &priv->stations[sta_id].keyinfo; - struct iwl_wep_key *wepkey; - int keyidx = 0; - - BUG_ON(ctl->hw_key->hw_key_idx > 3); - - switch (keyinfo->alg) { - case ALG_CCMP: - cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM; - memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen); - if (ctl->flags & IEEE80211_TXCTL_AMPDU) - cmd->cmd.tx.tx_flags |= TX_CMD_FLG_AGG_CCMP_MSK; - IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n"); - break; - - case ALG_TKIP: - cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP; - ieee80211_get_tkip_key(keyinfo->conf, skb_frag, - IEEE80211_TKIP_P2_KEY, cmd->cmd.tx.key); - IWL_DEBUG_TX("tx_cmd with tkip hwcrypto\n"); - break; - - case ALG_WEP: - wepkey = &priv->wep_keys[ctl->hw_key->hw_key_idx]; - cmd->cmd.tx.sec_ctl = 0; - if (priv->default_wep_key) { - /* the WEP key was sent as static */ - keyidx = ctl->hw_key->hw_key_idx; - memcpy(&cmd->cmd.tx.key[3], wepkey->key, - wepkey->key_size); - if (wepkey->key_size == WEP_KEY_LEN_128) - cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128; - } else { - /* the WEP key was sent as dynamic */ - keyidx = keyinfo->keyidx; - memcpy(&cmd->cmd.tx.key[3], keyinfo->key, - keyinfo->keylen); - if (keyinfo->keylen == WEP_KEY_LEN_128) - cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128; - } - - cmd->cmd.tx.sec_ctl |= (TX_CMD_SEC_WEP | - (keyidx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT); - - IWL_DEBUG_TX("Configuring packet for WEP encryption " - "with key %d\n", keyidx); - break; - - default: - printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg); - break; - } -} - -/* - * handle build REPLY_TX command notification. - */ -static void iwl4965_build_tx_cmd_basic(struct iwl_priv *priv, - struct iwl_cmd *cmd, - struct ieee80211_tx_control *ctrl, - struct ieee80211_hdr *hdr, - int is_unicast, u8 std_id) -{ - __le16 *qc; - u16 fc = le16_to_cpu(hdr->frame_control); - __le32 tx_flags = cmd->cmd.tx.tx_flags; - - cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - if (!(ctrl->flags & IEEE80211_TXCTL_NO_ACK)) { - tx_flags |= TX_CMD_FLG_ACK_MSK; - if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - if (ieee80211_is_probe_response(fc) && - !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) - tx_flags |= TX_CMD_FLG_TSF_MSK; - } else { - tx_flags &= (~TX_CMD_FLG_ACK_MSK); - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - } - - if (ieee80211_is_back_request(fc)) - tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK; - - - cmd->cmd.tx.sta_id = std_id; - if (ieee80211_get_morefrag(hdr)) - tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; - - qc = ieee80211_get_qos_ctrl(hdr); - if (qc) { - cmd->cmd.tx.tid_tspec = (u8) (le16_to_cpu(*qc) & 0xf); - tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; - } else - tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; - - if (ctrl->flags & IEEE80211_TXCTL_USE_RTS_CTS) { - tx_flags |= TX_CMD_FLG_RTS_MSK; - tx_flags &= ~TX_CMD_FLG_CTS_MSK; - } else if (ctrl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) { - tx_flags &= ~TX_CMD_FLG_RTS_MSK; - tx_flags |= TX_CMD_FLG_CTS_MSK; - } - - if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK)) - tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; - - tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); - if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { - if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ || - (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ) - cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3); - else - cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2); - } else { - cmd->cmd.tx.timeout.pm_frame_timeout = 0; - } - - cmd->cmd.tx.driver_txop = 0; - cmd->cmd.tx.tx_flags = tx_flags; - cmd->cmd.tx.next_frame_len = 0; -} -static void iwl_update_tx_stats(struct iwl_priv *priv, u16 fc, u16 len) -{ - /* 0 - mgmt, 1 - cnt, 2 - data */ - int idx = (fc & IEEE80211_FCTL_FTYPE) >> 2; - priv->tx_stats[idx].cnt++; - priv->tx_stats[idx].bytes += len; -} -/** - * iwl4965_get_sta_id - Find station's index within station table - * - * If new IBSS station, create new entry in station table - */ -static int iwl4965_get_sta_id(struct iwl_priv *priv, - struct ieee80211_hdr *hdr) -{ - int sta_id; - u16 fc = le16_to_cpu(hdr->frame_control); - DECLARE_MAC_BUF(mac); - - /* If this frame is broadcast or management, use broadcast station id */ - if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || - is_multicast_ether_addr(hdr->addr1)) - return priv->hw_params.bcast_sta_id; - - switch (priv->iw_mode) { - - /* If we are a client station in a BSS network, use the special - * AP station entry (that's the only station we communicate with) */ - case IEEE80211_IF_TYPE_STA: - return IWL_AP_ID; - - /* If we are an AP, then find the station, or use BCAST */ - case IEEE80211_IF_TYPE_AP: - sta_id = iwl_find_station(priv, hdr->addr1); - if (sta_id != IWL_INVALID_STATION) - return sta_id; - return priv->hw_params.bcast_sta_id; - - /* If this frame is going out to an IBSS network, find the station, - * or create a new station table entry */ - case IEEE80211_IF_TYPE_IBSS: - sta_id = iwl_find_station(priv, hdr->addr1); - if (sta_id != IWL_INVALID_STATION) - return sta_id; - - /* Create new station table entry */ - sta_id = iwl4965_add_station_flags(priv, hdr->addr1, - 0, CMD_ASYNC, NULL); - - if (sta_id != IWL_INVALID_STATION) - return sta_id; - - IWL_DEBUG_DROP("Station %s not in station map. " - "Defaulting to broadcast...\n", - print_mac(mac, hdr->addr1)); - iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); - return priv->hw_params.bcast_sta_id; - - default: - IWL_WARNING("Unknown mode of operation: %d", priv->iw_mode); - return priv->hw_params.bcast_sta_id; - } -} - -/* - * start REPLY_TX command process - */ -static int iwl4965_tx_skb(struct iwl_priv *priv, - struct sk_buff *skb, struct ieee80211_tx_control *ctl) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - struct iwl_tfd_frame *tfd; - u32 *control_flags; - int txq_id = ctl->queue; - struct iwl_tx_queue *txq = NULL; - struct iwl4965_queue *q = NULL; - dma_addr_t phys_addr; - dma_addr_t txcmd_phys; - dma_addr_t scratch_phys; - struct iwl_cmd *out_cmd = NULL; - u16 len, idx, len_org; - u8 id, hdr_len, unicast; - u8 sta_id; - u16 seq_number = 0; - u16 fc; - __le16 *qc; - u8 wait_write_ptr = 0; - unsigned long flags; - int rc; - - spin_lock_irqsave(&priv->lock, flags); - if (iwl_is_rfkill(priv)) { - IWL_DEBUG_DROP("Dropping - RF KILL\n"); - goto drop_unlock; - } - - if (!priv->vif) { - IWL_DEBUG_DROP("Dropping - !priv->vif\n"); - goto drop_unlock; - } - - if ((ctl->tx_rate->hw_value & 0xFF) == IWL_INVALID_RATE) { - IWL_ERROR("ERROR: No TX rate available.\n"); - goto drop_unlock; - } - - unicast = !is_multicast_ether_addr(hdr->addr1); - id = 0; - - fc = le16_to_cpu(hdr->frame_control); - -#ifdef CONFIG_IWLWIFI_DEBUG - if (ieee80211_is_auth(fc)) - IWL_DEBUG_TX("Sending AUTH frame\n"); - else if (ieee80211_is_assoc_request(fc)) - IWL_DEBUG_TX("Sending ASSOC frame\n"); - else if (ieee80211_is_reassoc_request(fc)) - IWL_DEBUG_TX("Sending REASSOC frame\n"); -#endif - - /* drop all data frame if we are not associated */ - if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) && - (!iwl_is_associated(priv) || - ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && !priv->assoc_id) || - !priv->assoc_station_added)) { - IWL_DEBUG_DROP("Dropping - !iwl_is_associated\n"); - goto drop_unlock; - } - - spin_unlock_irqrestore(&priv->lock, flags); - - hdr_len = ieee80211_get_hdrlen(fc); - - /* Find (or create) index into station table for destination station */ - sta_id = iwl4965_get_sta_id(priv, hdr); - if (sta_id == IWL_INVALID_STATION) { - DECLARE_MAC_BUF(mac); - - IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n", - print_mac(mac, hdr->addr1)); - goto drop; - } - - IWL_DEBUG_TX("station Id %d\n", sta_id); - - qc = ieee80211_get_qos_ctrl(hdr); - if (qc) { - u8 tid = (u8)(le16_to_cpu(*qc) & 0xf); - seq_number = priv->stations[sta_id].tid[tid].seq_number & - IEEE80211_SCTL_SEQ; - hdr->seq_ctrl = cpu_to_le16(seq_number) | - (hdr->seq_ctrl & - __constant_cpu_to_le16(IEEE80211_SCTL_FRAG)); - seq_number += 0x10; -#ifdef CONFIG_IWL4965_HT - /* aggregation is on for this <sta,tid> */ - if (ctl->flags & IEEE80211_TXCTL_AMPDU) - txq_id = priv->stations[sta_id].tid[tid].agg.txq_id; - priv->stations[sta_id].tid[tid].tfds_in_queue++; -#endif /* CONFIG_IWL4965_HT */ - } - - /* Descriptor for chosen Tx queue */ - txq = &priv->txq[txq_id]; - q = &txq->q; - - spin_lock_irqsave(&priv->lock, flags); - - /* Set up first empty TFD within this queue's circular TFD buffer */ - tfd = &txq->bd[q->write_ptr]; - memset(tfd, 0, sizeof(*tfd)); - control_flags = (u32 *) tfd; - idx = get_cmd_index(q, q->write_ptr, 0); - - /* Set up driver data for this TFD */ - memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl4965_tx_info)); - txq->txb[q->write_ptr].skb[0] = skb; - memcpy(&(txq->txb[q->write_ptr].status.control), - ctl, sizeof(struct ieee80211_tx_control)); - - /* Set up first empty entry in queue's array of Tx/cmd buffers */ - out_cmd = &txq->cmd[idx]; - memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); - memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx)); - - /* - * Set up the Tx-command (not MAC!) header. - * Store the chosen Tx queue and TFD index within the sequence field; - * after Tx, uCode's Tx response will return this value so driver can - * locate the frame within the tx queue and do post-tx processing. - */ - out_cmd->hdr.cmd = REPLY_TX; - out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | - INDEX_TO_SEQ(q->write_ptr))); - - /* Copy MAC header from skb into command buffer */ - memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len); - - /* - * Use the first empty entry in this queue's command buffer array - * to contain the Tx command and MAC header concatenated together - * (payload data will be in another buffer). - * Size of this varies, due to varying MAC header length. - * If end is not dword aligned, we'll have 2 extra bytes at the end - * of the MAC header (device reads on dword boundaries). - * We'll tell device about this padding later. - */ - len = priv->hw_params.tx_cmd_len + - sizeof(struct iwl_cmd_header) + hdr_len; - - len_org = len; - len = (len + 3) & ~3; - - if (len_org != len) - len_org = 1; - else - len_org = 0; - - /* Physical address of this Tx command's header (not MAC header!), - * within command buffer array. */ - txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl_cmd) * idx + - offsetof(struct iwl_cmd, hdr); - - /* Add buffer containing Tx command and MAC(!) header to TFD's - * first entry */ - iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len); - - if (!(ctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)) - iwl4965_build_tx_cmd_hwcrypto(priv, ctl, out_cmd, skb, sta_id); - - /* Set up TFD's 2nd entry to point directly to remainder of skb, - * if any (802.11 null frames have no payload). */ - len = skb->len - hdr_len; - if (len) { - phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, - len, PCI_DMA_TODEVICE); - iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len); - } - - /* Tell 4965 about any 2-byte padding after MAC header */ - if (len_org) - out_cmd->cmd.tx.tx_flags |= TX_CMD_FLG_MH_PAD_MSK; - - /* Total # bytes to be transmitted */ - len = (u16)skb->len; - out_cmd->cmd.tx.len = cpu_to_le16(len); - - /* TODO need this for burst mode later on */ - iwl4965_build_tx_cmd_basic(priv, out_cmd, ctl, hdr, unicast, sta_id); - - /* set is_hcca to 0; it probably will never be implemented */ - iwl4965_hw_build_tx_cmd_rate(priv, out_cmd, ctl, hdr, sta_id, 0); - - iwl_update_tx_stats(priv, fc, len); - - scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) + - offsetof(struct iwl4965_tx_cmd, scratch); - out_cmd->cmd.tx.dram_lsb_ptr = cpu_to_le32(scratch_phys); - out_cmd->cmd.tx.dram_msb_ptr = iwl_get_dma_hi_address(scratch_phys); - - if (!ieee80211_get_morefrag(hdr)) { - txq->need_update = 1; - if (qc) { - u8 tid = (u8)(le16_to_cpu(*qc) & 0xf); - priv->stations[sta_id].tid[tid].seq_number = seq_number; - } - } else { - wait_write_ptr = 1; - txq->need_update = 0; - } - - iwl_print_hex_dump(priv, IWL_DL_TX, out_cmd->cmd.payload, - sizeof(out_cmd->cmd.tx)); - - iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr, - ieee80211_get_hdrlen(fc)); - - /* Set up entry for this TFD in Tx byte-count array */ - priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, len); - - /* Tell device the write index *just past* this latest filled TFD */ - q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); - rc = iwl4965_tx_queue_update_write_ptr(priv, txq); - spin_unlock_irqrestore(&priv->lock, flags); - - if (rc) - return rc; - - if ((iwl4965_queue_space(q) < q->high_mark) - && priv->mac80211_registered) { - if (wait_write_ptr) { - spin_lock_irqsave(&priv->lock, flags); - txq->need_update = 1; - iwl4965_tx_queue_update_write_ptr(priv, txq); - spin_unlock_irqrestore(&priv->lock, flags); - } - - ieee80211_stop_queue(priv->hw, ctl->queue); - } - - return 0; - -drop_unlock: - spin_unlock_irqrestore(&priv->lock, flags); -drop: - return -1; -} - static void iwl4965_set_rate(struct iwl_priv *priv) { const struct ieee80211_supported_band *hw = NULL; @@ -2305,341 +1529,16 @@ static int iwl4965_get_measurement(struct iwl_priv *priv, } #endif -static void iwl4965_txstatus_to_ieee(struct iwl_priv *priv, - struct iwl4965_tx_info *tx_sta) -{ - - tx_sta->status.ack_signal = 0; - tx_sta->status.excessive_retries = 0; - - if (in_interrupt()) - ieee80211_tx_status_irqsafe(priv->hw, - tx_sta->skb[0], &(tx_sta->status)); - else - ieee80211_tx_status(priv->hw, - tx_sta->skb[0], &(tx_sta->status)); - - tx_sta->skb[0] = NULL; -} - -/** - * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd - * - * When FW advances 'R' index, all entries between old and new 'R' index - * need to be reclaimed. As result, some free space forms. If there is - * enough free space (> low mark), wake the stack that feeds us. - */ -int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index) -{ - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct iwl4965_queue *q = &txq->q; - int nfreed = 0; - - if ((index >= q->n_bd) || (x2_queue_used(q, index) == 0)) { - IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " - "is out of range [0-%d] %d %d.\n", txq_id, - index, q->n_bd, q->write_ptr, q->read_ptr); - return 0; - } - - for (index = iwl_queue_inc_wrap(index, q->n_bd); - q->read_ptr != index; - q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { - if (txq_id != IWL_CMD_QUEUE_NUM) { - iwl4965_txstatus_to_ieee(priv, - &(txq->txb[txq->q.read_ptr])); - iwl_hw_txq_free_tfd(priv, txq); - } else if (nfreed > 1) { - IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, - q->write_ptr, q->read_ptr); - queue_work(priv->workqueue, &priv->restart); - } - nfreed++; - } - - return nfreed; -} - -static int iwl4965_is_tx_success(u32 status) -{ - status &= TX_STATUS_MSK; - return (status == TX_STATUS_SUCCESS) - || (status == TX_STATUS_DIRECT_DONE); -} - /****************************************************************************** * * Generic RX handler implementations * ******************************************************************************/ -#ifdef CONFIG_IWL4965_HT - -static inline int iwl4965_get_ra_sta_id(struct iwl_priv *priv, - struct ieee80211_hdr *hdr) -{ - if (priv->iw_mode == IEEE80211_IF_TYPE_STA) - return IWL_AP_ID; - else { - u8 *da = ieee80211_get_DA(hdr); - return iwl_find_station(priv, da); - } -} - -static struct ieee80211_hdr *iwl4965_tx_queue_get_hdr( - struct iwl_priv *priv, int txq_id, int idx) -{ - if (priv->txq[txq_id].txb[idx].skb[0]) - return (struct ieee80211_hdr *)priv->txq[txq_id]. - txb[idx].skb[0]->data; - return NULL; -} - -static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp) -{ - __le32 *scd_ssn = (__le32 *)((u32 *)&tx_resp->status + - tx_resp->frame_count); - return le32_to_cpu(*scd_ssn) & MAX_SN; - -} - -/** - * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue - */ -static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv, - struct iwl_ht_agg *agg, - struct iwl4965_tx_resp_agg *tx_resp, - u16 start_idx) -{ - u16 status; - struct agg_tx_status *frame_status = &tx_resp->status; - struct ieee80211_tx_status *tx_status = NULL; - struct ieee80211_hdr *hdr = NULL; - int i, sh; - int txq_id, idx; - u16 seq; - - if (agg->wait_for_ba) - IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n"); - - agg->frame_count = tx_resp->frame_count; - agg->start_idx = start_idx; - agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags); - agg->bitmap = 0; - - /* # frames attempted by Tx command */ - if (agg->frame_count == 1) { - /* Only one frame was attempted; no block-ack will arrive */ - status = le16_to_cpu(frame_status[0].status); - seq = le16_to_cpu(frame_status[0].sequence); - idx = SEQ_TO_INDEX(seq); - txq_id = SEQ_TO_QUEUE(seq); - - /* FIXME: code repetition */ - IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n", - agg->frame_count, agg->start_idx, idx); - - tx_status = &(priv->txq[txq_id].txb[idx].status); - tx_status->retry_count = tx_resp->failure_frame; - tx_status->control.flags &= ~IEEE80211_TXCTL_AMPDU; - tx_status->flags = iwl4965_is_tx_success(status)? - IEEE80211_TX_STATUS_ACK : 0; - iwl4965_hwrate_to_tx_control(priv, - le32_to_cpu(tx_resp->rate_n_flags), - &tx_status->control); - /* FIXME: code repetition end */ - - IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n", - status & 0xff, tx_resp->failure_frame); - IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n", - iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags)); - - agg->wait_for_ba = 0; - } else { - /* Two or more frames were attempted; expect block-ack */ - u64 bitmap = 0; - int start = agg->start_idx; - - /* Construct bit-map of pending frames within Tx window */ - for (i = 0; i < agg->frame_count; i++) { - u16 sc; - status = le16_to_cpu(frame_status[i].status); - seq = le16_to_cpu(frame_status[i].sequence); - idx = SEQ_TO_INDEX(seq); - txq_id = SEQ_TO_QUEUE(seq); - - if (status & (AGG_TX_STATE_FEW_BYTES_MSK | - AGG_TX_STATE_ABORT_MSK)) - continue; - - IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n", - agg->frame_count, txq_id, idx); - - hdr = iwl4965_tx_queue_get_hdr(priv, txq_id, idx); - - sc = le16_to_cpu(hdr->seq_ctrl); - if (idx != (SEQ_TO_SN(sc) & 0xff)) { - IWL_ERROR("BUG_ON idx doesn't match seq control" - " idx=%d, seq_idx=%d, seq=%d\n", - idx, SEQ_TO_SN(sc), - hdr->seq_ctrl); - return -1; - } - - IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n", - i, idx, SEQ_TO_SN(sc)); - - sh = idx - start; - if (sh > 64) { - sh = (start - idx) + 0xff; - bitmap = bitmap << sh; - sh = 0; - start = idx; - } else if (sh < -64) - sh = 0xff - (start - idx); - else if (sh < 0) { - sh = start - idx; - start = idx; - bitmap = bitmap << sh; - sh = 0; - } - bitmap |= (1 << sh); - IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n", - start, (u32)(bitmap & 0xFFFFFFFF)); - } - - agg->bitmap = bitmap; - agg->start_idx = start; - agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags); - IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n", - agg->frame_count, agg->start_idx, - (unsigned long long)agg->bitmap); - - if (bitmap) - agg->wait_for_ba = 1; - } - return 0; -} -#endif - -/** - * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response - */ -static void iwl4965_rx_reply_tx(struct iwl_priv *priv, +static void iwl_rx_reply_alive(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - u16 sequence = le16_to_cpu(pkt->hdr.sequence); - int txq_id = SEQ_TO_QUEUE(sequence); - int index = SEQ_TO_INDEX(sequence); - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct ieee80211_tx_status *tx_status; - struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; - u32 status = le32_to_cpu(tx_resp->status); -#ifdef CONFIG_IWL4965_HT - int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION; - struct ieee80211_hdr *hdr; - __le16 *qc; -#endif - - if ((index >= txq->q.n_bd) || (x2_queue_used(&txq->q, index) == 0)) { - IWL_ERROR("Read index for DMA queue txq_id (%d) index %d " - "is out of range [0-%d] %d %d\n", txq_id, - index, txq->q.n_bd, txq->q.write_ptr, - txq->q.read_ptr); - return; - } - -#ifdef CONFIG_IWL4965_HT - hdr = iwl4965_tx_queue_get_hdr(priv, txq_id, index); - qc = ieee80211_get_qos_ctrl(hdr); - - if (qc) - tid = le16_to_cpu(*qc) & 0xf; - - sta_id = iwl4965_get_ra_sta_id(priv, hdr); - if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) { - IWL_ERROR("Station not known\n"); - return; - } - - if (txq->sched_retry) { - const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp); - struct iwl_ht_agg *agg = NULL; - - if (!qc) - return; - - agg = &priv->stations[sta_id].tid[tid].agg; - - iwl4965_tx_status_reply_tx(priv, agg, - (struct iwl4965_tx_resp_agg *)tx_resp, index); - - if ((tx_resp->frame_count == 1) && - !iwl4965_is_tx_success(status)) { - /* TODO: send BAR */ - } - - if (txq->q.read_ptr != (scd_ssn & 0xff)) { - int freed, ampdu_q; - index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd); - IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn " - "%d index %d\n", scd_ssn , index); - freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); - priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; - - if (iwl4965_queue_space(&txq->q) > txq->q.low_mark && - txq_id >= 0 && priv->mac80211_registered && - agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) { - /* calculate mac80211 ampdu sw queue to wake */ - ampdu_q = txq_id - IWL_BACK_QUEUE_FIRST_ID + - priv->hw->queues; - if (agg->state == IWL_AGG_OFF) - ieee80211_wake_queue(priv->hw, txq_id); - else - ieee80211_wake_queue(priv->hw, ampdu_q); - } - iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id); - } - } else { -#endif /* CONFIG_IWL4965_HT */ - tx_status = &(txq->txb[txq->q.read_ptr].status); - - tx_status->retry_count = tx_resp->failure_frame; - tx_status->flags = - iwl4965_is_tx_success(status) ? IEEE80211_TX_STATUS_ACK : 0; - iwl4965_hwrate_to_tx_control(priv, le32_to_cpu(tx_resp->rate_n_flags), - &tx_status->control); - - IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x " - "retries %d\n", txq_id, iwl4965_get_tx_fail_reason(status), - status, le32_to_cpu(tx_resp->rate_n_flags), - tx_resp->failure_frame); - - IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); -#ifdef CONFIG_IWL4965_HT - if (index != -1) { - int freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); - if (tid != MAX_TID_COUNT) - priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; - if (iwl4965_queue_space(&txq->q) > txq->q.low_mark && - (txq_id >= 0) && priv->mac80211_registered) - ieee80211_wake_queue(priv->hw, txq_id); - if (tid != MAX_TID_COUNT) - iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id); - } - } -#endif /* CONFIG_IWL4965_HT */ - - if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK)) - IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n"); -} - - -static void iwl4965_rx_reply_alive(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - struct iwl4965_alive_resp *palive; + struct iwl_alive_resp *palive; struct delayed_work *pwork; palive = &pkt->u.alive_frame; @@ -2653,12 +1552,12 @@ static void iwl4965_rx_reply_alive(struct iwl_priv *priv, IWL_DEBUG_INFO("Initialization Alive received.\n"); memcpy(&priv->card_alive_init, &pkt->u.alive_frame, - sizeof(struct iwl4965_init_alive_resp)); + sizeof(struct iwl_init_alive_resp)); pwork = &priv->init_alive_start; } else { IWL_DEBUG_INFO("Runtime Alive received.\n"); memcpy(&priv->card_alive, &pkt->u.alive_frame, - sizeof(struct iwl4965_alive_resp)); + sizeof(struct iwl_alive_resp)); pwork = &priv->alive_start; } @@ -2671,15 +1570,6 @@ static void iwl4965_rx_reply_alive(struct iwl_priv *priv, IWL_WARNING("uCode did not respond OK.\n"); } -static void iwl4965_rx_reply_add_sta(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - - IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); - return; -} - static void iwl4965_rx_reply_error(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { @@ -2699,7 +1589,7 @@ static void iwl4965_rx_reply_error(struct iwl_priv *priv, static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - struct iwl4965_rxon_cmd *rxon = (void *)&priv->active_rxon; + struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif); IWL_DEBUG_11H("CSA notif: channel %d, status %d\n", le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); @@ -2753,7 +1643,7 @@ static void iwl4965_bg_beacon_update(struct work_struct *work) struct sk_buff *beacon; /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ - beacon = ieee80211_beacon_get(priv->hw, priv->vif, NULL); + beacon = ieee80211_beacon_get(priv->hw, priv->vif); if (!beacon) { IWL_ERROR("update beacon failed\n"); @@ -2976,6 +1866,17 @@ static void iwl4965_rx_card_state_notif(struct iwl_priv *priv, wake_up_interruptible(&priv->wait_command_queue); } +/* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD). + * This will be used later in iwl4965_rx_reply_rx() for REPLY_RX_MPDU_CMD. */ +static void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv, + struct iwl_rx_mem_buffer *rxb) +{ + struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; + priv->last_phy_res[0] = 1; + memcpy(&priv->last_phy_res[1], &(pkt->u.raw[0]), + sizeof(struct iwl4965_rx_phy_res)); +} + /** * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks * @@ -2987,8 +1888,7 @@ static void iwl4965_rx_card_state_notif(struct iwl_priv *priv, */ static void iwl4965_setup_rx_handlers(struct iwl_priv *priv) { - priv->rx_handlers[REPLY_ALIVE] = iwl4965_rx_reply_alive; - priv->rx_handlers[REPLY_ADD_STA] = iwl4965_rx_reply_add_sta; + priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive; priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error; priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa; priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = @@ -3005,66 +1905,25 @@ 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; + /* status change handler */ priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif; - priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx; + priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] = + iwl_rx_missed_beacon_notif; + /* Rx handlers */ + priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl4965_rx_reply_rx_phy; + priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl4965_rx_reply_rx; /* Set up hardware specific Rx handlers */ priv->cfg->ops->lib->rx_handler_setup(priv); } -/** - * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them - * @rxb: Rx buffer to reclaim - * - * If an Rx buffer has an async callback associated with it the callback - * will be executed. The attached skb (if present) will only be freed - * if the callback returns 1 - */ -static void iwl4965_tx_cmd_complete(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - u16 sequence = le16_to_cpu(pkt->hdr.sequence); - int txq_id = SEQ_TO_QUEUE(sequence); - int index = SEQ_TO_INDEX(sequence); - int huge = sequence & SEQ_HUGE_FRAME; - int cmd_index; - struct iwl_cmd *cmd; - - /* If a Tx command is being handled and it isn't in the actual - * command queue then there a command routing bug has been introduced - * in the queue management code. */ - if (txq_id != IWL_CMD_QUEUE_NUM) - IWL_ERROR("Error wrong command queue %d command id 0x%X\n", - txq_id, pkt->hdr.cmd); - BUG_ON(txq_id != IWL_CMD_QUEUE_NUM); - - cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); - cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; - - /* Input error checking is done when commands are added to queue. */ - if (cmd->meta.flags & CMD_WANT_SKB) { - cmd->meta.source->u.skb = rxb->skb; - rxb->skb = NULL; - } else if (cmd->meta.u.callback && - !cmd->meta.u.callback(priv, cmd, rxb->skb)) - rxb->skb = NULL; - - iwl4965_tx_queue_reclaim(priv, txq_id, index); - - if (!(cmd->meta.flags & CMD_ASYNC)) { - clear_bit(STATUS_HCMD_ACTIVE, &priv->status); - wake_up_interruptible(&priv->wait_command_queue); - } -} - /* * this should be called while priv->lock is locked */ @@ -3153,7 +2012,7 @@ void iwl_rx_handle(struct iwl_priv *priv) * fire off the (possibly) blocking iwl_send_cmd() * as we reclaim the driver command queue */ if (rxb && rxb->skb) - iwl4965_tx_cmd_complete(priv, rxb); + iwl_tx_cmd_complete(priv, rxb); else IWL_WARNING("Claim null rxb?\n"); } @@ -3268,56 +2127,10 @@ int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm) return sig_qual; } -/** - * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware - */ -static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv *priv, - struct iwl_tx_queue *txq) -{ - u32 reg = 0; - int rc = 0; - int txq_id = txq->q.id; - - if (txq->need_update == 0) - return rc; - - /* if we're trying to save power */ - if (test_bit(STATUS_POWER_PMI, &priv->status)) { - /* wake up nic if it's powered down ... - * uCode will wake up, and interrupt us again, so next - * time we'll skip this part. */ - reg = iwl_read32(priv, CSR_UCODE_DRV_GP1); - - if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { - IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg); - iwl_set_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - return rc; - } - - /* restore this queue's parameters in nic hardware. */ - rc = iwl_grab_nic_access(priv); - if (rc) - return rc; - iwl_write_direct32(priv, HBUS_TARG_WRPTR, - txq->q.write_ptr | (txq_id << 8)); - iwl_release_nic_access(priv); - - /* else not in power-save mode, uCode will never sleep when we're - * trying to tx (during RFKILL, we're not trying to tx). */ - } else - iwl_write32(priv, HBUS_TARG_WRPTR, - txq->q.write_ptr | (txq_id << 8)); - - txq->need_update = 0; - - return rc; -} - #ifdef CONFIG_IWLWIFI_DEBUG static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv) { - struct iwl4965_rxon_cmd *rxon = &priv->staging_rxon; + struct iwl_rxon_cmd *rxon = &priv->staging_rxon; DECLARE_MAC_BUF(mac); IWL_DEBUG_RADIO("RX CONFIG:\n"); @@ -3367,173 +2180,6 @@ static inline void iwl4965_disable_interrupts(struct iwl_priv *priv) IWL_DEBUG_ISR("Disabled interrupts\n"); } -static const char *desc_lookup(int i) -{ - switch (i) { - case 1: - return "FAIL"; - case 2: - return "BAD_PARAM"; - case 3: - return "BAD_CHECKSUM"; - case 4: - return "NMI_INTERRUPT"; - case 5: - return "SYSASSERT"; - case 6: - return "FATAL_ERROR"; - } - - return "UNKNOWN"; -} - -#define ERROR_START_OFFSET (1 * sizeof(u32)) -#define ERROR_ELEM_SIZE (7 * sizeof(u32)) - -static void iwl4965_dump_nic_error_log(struct iwl_priv *priv) -{ - u32 data2, line; - u32 desc, time, count, base, data1; - u32 blink1, blink2, ilink1, ilink2; - int rc; - - base = le32_to_cpu(priv->card_alive.error_event_table_ptr); - - if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { - IWL_ERROR("Not valid error log pointer 0x%08X\n", base); - return; - } - - rc = iwl_grab_nic_access(priv); - if (rc) { - IWL_WARNING("Can not read from adapter at this time.\n"); - return; - } - - count = iwl_read_targ_mem(priv, base); - - if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { - IWL_ERROR("Start IWL Error Log Dump:\n"); - IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count); - } - - desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); - blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); - blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); - ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); - ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); - data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); - data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); - line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); - time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); - - IWL_ERROR("Desc Time " - "data1 data2 line\n"); - IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n", - desc_lookup(desc), desc, time, data1, data2, line); - IWL_ERROR("blink1 blink2 ilink1 ilink2\n"); - IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, - ilink1, ilink2); - - iwl_release_nic_access(priv); -} - -#define EVENT_START_OFFSET (4 * sizeof(u32)) - -/** - * iwl4965_print_event_log - Dump error event log to syslog - * - * NOTE: Must be called with iwl_grab_nic_access() already obtained! - */ -static void iwl4965_print_event_log(struct iwl_priv *priv, u32 start_idx, - u32 num_events, u32 mode) -{ - u32 i; - u32 base; /* SRAM byte address of event log header */ - u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ - u32 ptr; /* SRAM byte address of log data */ - u32 ev, time, data; /* event log data */ - - if (num_events == 0) - return; - - base = le32_to_cpu(priv->card_alive.log_event_table_ptr); - - if (mode == 0) - event_size = 2 * sizeof(u32); - else - event_size = 3 * sizeof(u32); - - ptr = base + EVENT_START_OFFSET + (start_idx * event_size); - - /* "time" is actually "data" for mode 0 (no timestamp). - * place event id # at far right for easier visual parsing. */ - for (i = 0; i < num_events; i++) { - ev = iwl_read_targ_mem(priv, ptr); - ptr += sizeof(u32); - time = iwl_read_targ_mem(priv, ptr); - ptr += sizeof(u32); - if (mode == 0) - IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */ - else { - data = iwl_read_targ_mem(priv, ptr); - ptr += sizeof(u32); - IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev); - } - } -} - -static void iwl4965_dump_nic_event_log(struct iwl_priv *priv) -{ - int rc; - u32 base; /* SRAM byte address of event log header */ - u32 capacity; /* event log capacity in # entries */ - u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ - u32 num_wraps; /* # times uCode wrapped to top of log */ - u32 next_entry; /* index of next entry to be written by uCode */ - u32 size; /* # entries that we'll print */ - - base = le32_to_cpu(priv->card_alive.log_event_table_ptr); - if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { - IWL_ERROR("Invalid event log pointer 0x%08X\n", base); - return; - } - - rc = iwl_grab_nic_access(priv); - if (rc) { - IWL_WARNING("Can not read from adapter at this time.\n"); - return; - } - - /* event log header */ - capacity = iwl_read_targ_mem(priv, base); - mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); - num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); - next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); - - size = num_wraps ? capacity : next_entry; - - /* bail out if nothing in log */ - if (size == 0) { - IWL_ERROR("Start IWL Event Log Dump: nothing in log\n"); - iwl_release_nic_access(priv); - return; - } - - IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n", - size, num_wraps); - - /* if uCode has wrapped back to top of log, start at the oldest entry, - * i.e the next one that uCode would fill. */ - if (num_wraps) - iwl4965_print_event_log(priv, next_entry, - capacity - next_entry, mode); - - /* (then/else) start at top of log */ - iwl4965_print_event_log(priv, 0, next_entry, mode); - - iwl_release_nic_access(priv); -} /** * iwl4965_irq_handle_error - called for HW or SW error interrupt from card @@ -3548,8 +2194,8 @@ static void iwl4965_irq_handle_error(struct iwl_priv *priv) #ifdef CONFIG_IWLWIFI_DEBUG if (priv->debug_level & IWL_DL_FW_ERRORS) { - iwl4965_dump_nic_error_log(priv); - iwl4965_dump_nic_event_log(priv); + iwl_dump_nic_error_log(priv); + iwl_dump_nic_event_log(priv); iwl4965_print_rx_config_cmd(priv); } #endif @@ -3583,7 +2229,7 @@ static void iwl4965_error_recovery(struct iwl_priv *priv) priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; iwl4965_commit_rxon(priv); - iwl4965_rxon_add_station(priv, priv->bssid, 1); + iwl_rxon_add_station(priv, priv->bssid, 1); spin_lock_irqsave(&priv->lock, flags); priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); @@ -3703,12 +2349,12 @@ static void iwl4965_irq_tasklet(struct iwl_priv *priv) if (inta & CSR_INT_BIT_WAKEUP) { IWL_DEBUG_ISR("Wakeup interrupt\n"); iwl_rx_queue_update_write_ptr(priv, &priv->rxq); - iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[0]); - iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[1]); - iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[2]); - iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[3]); - iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[4]); - iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[5]); + iwl_txq_update_write_ptr(priv, &priv->txq[0]); + iwl_txq_update_write_ptr(priv, &priv->txq[1]); + iwl_txq_update_write_ptr(priv, &priv->txq[2]); + iwl_txq_update_write_ptr(priv, &priv->txq[3]); + iwl_txq_update_write_ptr(priv, &priv->txq[4]); + iwl_txq_update_write_ptr(priv, &priv->txq[5]); handled |= CSR_INT_BIT_WAKEUP; } @@ -3724,6 +2370,9 @@ static void iwl4965_irq_tasklet(struct iwl_priv *priv) if (inta & CSR_INT_BIT_FH_TX) { IWL_DEBUG_ISR("Tx interrupt\n"); handled |= CSR_INT_BIT_FH_TX; + /* FH finished to write, send event */ + priv->ucode_write_complete = 1; + wake_up_interruptible(&priv->wait_command_queue); } if (inta & ~handled) @@ -4162,11 +2811,11 @@ static int iwl4965_read_ucode(struct iwl_priv *priv) } /** - * iwl4965_alive_start - called after REPLY_ALIVE notification received + * iwl_alive_start - called after REPLY_ALIVE notification received * from protocol/runtime uCode (initialization uCode's - * Alive gets handled by iwl4965_init_alive_start()). + * Alive gets handled by iwl_init_alive_start()). */ -static void iwl4965_alive_start(struct iwl_priv *priv) +static void iwl_alive_start(struct iwl_priv *priv) { int ret = 0; @@ -4190,7 +2839,6 @@ static void iwl4965_alive_start(struct iwl_priv *priv) } iwlcore_clear_stations_table(priv); - ret = priv->cfg->ops->lib->alive_notify(priv); if (ret) { IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n", @@ -4207,14 +2855,14 @@ static void iwl4965_alive_start(struct iwl_priv *priv) if (iwl_is_rfkill(priv)) return; - ieee80211_start_queues(priv->hw); + ieee80211_wake_queues(priv->hw); priv->active_rate = priv->rates_mask; priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; if (iwl_is_associated(priv)) { - struct iwl4965_rxon_cmd *active_rxon = - (struct iwl4965_rxon_cmd *)(&priv->active_rxon); + struct iwl_rxon_cmd *active_rxon = + (struct iwl_rxon_cmd *)&priv->active_rxon; memcpy(&priv->staging_rxon, &priv->active_rxon, sizeof(priv->staging_rxon)); @@ -4228,12 +2876,12 @@ static void iwl4965_alive_start(struct iwl_priv *priv) /* Configure Bluetooth device coexistence support */ iwl4965_send_bt_config(priv); + iwl_reset_run_time_calib(priv); + /* Configure the adapter for unassociated operation */ iwl4965_commit_rxon(priv); /* At this point, the NIC is initialized and operational */ - priv->notif_missed_beacons = 0; - iwl4965_rf_kill_ct_config(priv); iwl_leds_register(priv); @@ -4259,12 +2907,9 @@ static void __iwl4965_down(struct iwl_priv *priv) { unsigned long flags; int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); - struct ieee80211_conf *conf = NULL; IWL_DEBUG_INFO(DRV_NAME " is going down\n"); - conf = ieee80211_get_hw_conf(priv->hw); - if (!exit_pending) set_bit(STATUS_EXIT_PENDING, &priv->status); @@ -4326,8 +2971,8 @@ static void __iwl4965_down(struct iwl_priv *priv) CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); spin_unlock_irqrestore(&priv->lock, flags); - iwl4965_hw_txq_ctx_stop(priv); - iwl4965_hw_rxq_stop(priv); + iwl_txq_ctx_stop(priv); + iwl_rxq_stop(priv); spin_lock_irqsave(&priv->lock, flags); if (!iwl_grab_nic_access(priv)) { @@ -4339,20 +2984,19 @@ static void __iwl4965_down(struct iwl_priv *priv) udelay(5); - iwl4965_hw_nic_stop_master(priv); - iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); - iwl4965_hw_nic_reset(priv); + /* FIXME: apm_ops.suspend(priv) */ + priv->cfg->ops->lib->apm_ops.reset(priv); priv->cfg->ops->lib->free_shared_mem(priv); exit: - memset(&priv->card_alive, 0, sizeof(struct iwl4965_alive_resp)); + memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); if (priv->ibss_beacon) dev_kfree_skb(priv->ibss_beacon); priv->ibss_beacon = NULL; /* clear out any free frames */ - iwl4965_clear_free_frames(priv); + iwl_clear_free_frames(priv); } static void iwl4965_down(struct iwl_priv *priv) @@ -4477,7 +3121,7 @@ static int __iwl4965_up(struct iwl_priv *priv) * *****************************************************************************/ -static void iwl4965_bg_init_alive_start(struct work_struct *data) +static void iwl_bg_init_alive_start(struct work_struct *data) { struct iwl_priv *priv = container_of(data, struct iwl_priv, init_alive_start.work); @@ -4490,7 +3134,7 @@ static void iwl4965_bg_init_alive_start(struct work_struct *data) mutex_unlock(&priv->mutex); } -static void iwl4965_bg_alive_start(struct work_struct *data) +static void iwl_bg_alive_start(struct work_struct *data) { struct iwl_priv *priv = container_of(data, struct iwl_priv, alive_start.work); @@ -4499,7 +3143,7 @@ static void iwl4965_bg_alive_start(struct work_struct *data) return; mutex_lock(&priv->mutex); - iwl4965_alive_start(priv); + iwl_alive_start(priv); mutex_unlock(&priv->mutex); } @@ -4909,8 +3553,8 @@ static void iwl4965_post_associate(struct iwl_priv *priv) /* clear out the station table */ iwlcore_clear_stations_table(priv); - iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0); - iwl4965_rxon_add_station(priv, priv->bssid, 0); + 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); @@ -5021,7 +3665,7 @@ static int iwl4965_mac_start(struct ieee80211_hw *hw) /* we should be verifying the device is ready to be opened */ mutex_lock(&priv->mutex); - memset(&priv->staging_rxon, 0, sizeof(struct iwl4965_rxon_cmd)); + memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd)); /* fetch ucode file from disk, alloc and copy to bus-master buffers ... * ucode filename and max sizes are card-specific. */ @@ -5046,21 +3690,23 @@ static int iwl4965_mac_start(struct ieee80211_hw *hw) if (test_bit(STATUS_IN_SUSPEND, &priv->status)) return 0; - /* Wait for START_ALIVE from ucode. Otherwise callbacks from + /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from * mac80211 will not be run successfully. */ - ret = wait_event_interruptible_timeout(priv->wait_command_queue, - test_bit(STATUS_READY, &priv->status), - UCODE_READY_TIMEOUT); - if (!ret) { - if (!test_bit(STATUS_READY, &priv->status)) { - IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n", - jiffies_to_msecs(UCODE_READY_TIMEOUT)); - ret = -ETIMEDOUT; - goto out_release_irq; + if (priv->ucode_type == UCODE_RT) { + ret = wait_event_interruptible_timeout(priv->wait_command_queue, + test_bit(STATUS_READY, &priv->status), + UCODE_READY_TIMEOUT); + if (!ret) { + if (!test_bit(STATUS_READY, &priv->status)) { + IWL_ERROR("START_ALIVE timeout after %dms.\n", + jiffies_to_msecs(UCODE_READY_TIMEOUT)); + ret = -ETIMEDOUT; + goto out_release_irq; + } } - } - priv->is_open = 1; + priv->is_open = 1; + } IWL_DEBUG_MAC80211("leave\n"); return 0; @@ -5108,8 +3754,7 @@ static void iwl4965_mac_stop(struct ieee80211_hw *hw) IWL_DEBUG_MAC80211("leave\n"); } -static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_tx_control *ctl) +static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) { struct iwl_priv *priv = hw->priv; @@ -5121,9 +3766,9 @@ static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, } IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, - ctl->tx_rate->bitrate); + ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); - if (iwl4965_tx_skb(priv, skb, ctl)) + if (iwl_tx_skb(priv, skb)) dev_kfree_skb_any(skb); IWL_DEBUG_MAC80211("leave\n"); @@ -5178,6 +3823,7 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co const struct iwl_channel_info *ch_info; unsigned long flags; int ret = 0; + u16 channel; mutex_lock(&priv->mutex); IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value); @@ -5198,22 +3844,21 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co return 0; } - spin_lock_irqsave(&priv->lock, flags); - - ch_info = iwl_get_channel_info(priv, conf->channel->band, - ieee80211_frequency_to_channel(conf->channel->center_freq)); + channel = ieee80211_frequency_to_channel(conf->channel->center_freq); + ch_info = iwl_get_channel_info(priv, conf->channel->band, channel); if (!is_channel_valid(ch_info)) { IWL_DEBUG_MAC80211("leave - invalid channel\n"); - spin_unlock_irqrestore(&priv->lock, flags); 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 */ - if ((le16_to_cpu(priv->staging_rxon.channel) != conf->channel->hw_value) + if ((le16_to_cpu(priv->staging_rxon.channel) != channel) #ifdef IEEE80211_CONF_CHANNEL_SWITCH && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) #endif @@ -5221,10 +3866,9 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co priv->staging_rxon.flags = 0; #endif /* CONFIG_IWL4965_HT */ - iwl_set_rxon_channel(priv, conf->channel->band, - ieee80211_frequency_to_channel(conf->channel->center_freq)); + iwl_set_rxon_channel(priv, conf->channel->band, channel); - iwl4965_set_flags_for_phymode(priv, conf->channel->band); + iwl_set_flags_for_band(priv, conf->channel->band); /* The list of supported rates and rate mask can be different * for each band; since the band may have changed, reset @@ -5321,7 +3965,7 @@ static void iwl4965_config_ap(struct iwl_priv *priv) priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; iwl4965_commit_rxon(priv); iwl4965_activate_qos(priv, 1); - iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0); + iwl_rxon_add_station(priv, iwl_bcast_addr, 0); } iwl4965_send_beacon_cmd(priv); @@ -5410,7 +4054,7 @@ static int iwl4965_mac_config_interface(struct ieee80211_hw *hw, else { rc = iwl4965_commit_rxon(priv); if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc) - iwl4965_rxon_add_station( + iwl_rxon_add_station( priv, priv->active_rxon.bssid_addr, 1); } @@ -5697,7 +4341,8 @@ static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, if (cmd == SET_KEY) is_default_wep_key = !priv->key_mapping_key; else - is_default_wep_key = priv->default_wep_key; + is_default_wep_key = + (key->hw_key_idx == HW_KEY_DEFAULT); } switch (cmd) { @@ -5783,7 +4428,7 @@ static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw, struct iwl_priv *priv = hw->priv; int i, avail; struct iwl_tx_queue *txq; - struct iwl4965_queue *q; + struct iwl_queue *q; unsigned long flags; IWL_DEBUG_MAC80211("enter\n"); @@ -5798,7 +4443,7 @@ static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw, for (i = 0; i < AC_NUM; i++) { txq = &priv->txq[i]; q = &txq->q; - avail = iwl4965_queue_space(q); + avail = iwl_queue_space(q); stats[i].len = q->n_window - avail; stats[i].limit = q->n_window - q->high_mark; @@ -5904,8 +4549,7 @@ static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw) IWL_DEBUG_MAC80211("leave\n"); } -static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_tx_control *control) +static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) { struct iwl_priv *priv = hw->priv; unsigned long flags; @@ -5998,7 +4642,7 @@ static ssize_t show_version(struct device *d, struct device_attribute *attr, char *buf) { struct iwl_priv *priv = d->driver_data; - struct iwl4965_alive_resp *palive = &priv->card_alive; + struct iwl_alive_resp *palive = &priv->card_alive; if (palive->is_valid) return sprintf(buf, "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n" @@ -6368,34 +5012,6 @@ static ssize_t show_status(struct device *d, static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); -static ssize_t dump_error_log(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - char *p = (char *)buf; - - if (p[0] == '1') - iwl4965_dump_nic_error_log((struct iwl_priv *)d->driver_data); - - return strnlen(buf, count); -} - -static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); - -static ssize_t dump_event_log(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - char *p = (char *)buf; - - if (p[0] == '1') - iwl4965_dump_nic_event_log((struct iwl_priv *)d->driver_data); - - return strnlen(buf, count); -} - -static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log); - /***************************************************************************** * * driver setup and teardown @@ -6418,8 +5034,8 @@ static void iwl4965_setup_deferred_work(struct iwl_priv *priv) INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update); INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor); INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate); - INIT_DELAYED_WORK(&priv->init_alive_start, iwl4965_bg_init_alive_start); - INIT_DELAYED_WORK(&priv->alive_start, iwl4965_bg_alive_start); + 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); @@ -6441,8 +5057,6 @@ static void iwl4965_cancel_deferred_work(struct iwl_priv *priv) static struct attribute *iwl4965_sysfs_entries[] = { &dev_attr_channels.attr, - &dev_attr_dump_errors.attr, - &dev_attr_dump_events.attr, &dev_attr_flags.attr, &dev_attr_filter_flags.attr, #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT @@ -6605,7 +5219,7 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e if (err) goto out_iounmap; - /* MAC Address location in EEPROM same for 3945/4965 */ + /* extract MAC Address */ iwl_eeprom_get_mac(priv, priv->mac_addr); IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr)); SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); @@ -6620,10 +5234,10 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e } /******************* - * 6. Setup hw/priv + * 6. Setup priv *******************/ - err = iwl_setup(priv); + err = iwl_init_drv(priv); if (err) goto out_free_eeprom; /* At this point both hw and priv are initialized. */ @@ -6638,9 +5252,6 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e IWL_DEBUG_INFO("Radio disabled.\n"); } - if (priv->cfg->mod_params->enable_qos) - priv->qos_data.qos_enable = 1; - /******************** * 8. Setup services ********************/ @@ -6651,14 +5262,9 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group); if (err) { IWL_ERROR("failed to create sysfs device attributes\n"); - goto out_free_eeprom; + goto out_uninit_drv; } - err = iwl_dbgfs_register(priv, DRV_NAME); - if (err) { - IWL_ERROR("failed to create debugfs files\n"); - goto out_remove_sysfs; - } iwl4965_setup_deferred_work(priv); iwl4965_setup_rx_handlers(priv); @@ -6669,12 +5275,26 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e pci_save_state(pdev); pci_disable_device(pdev); + /********************************** + * 10. Setup and register mac80211 + **********************************/ + + err = iwl_setup_mac(priv); + if (err) + goto out_remove_sysfs; + + err = iwl_dbgfs_register(priv, DRV_NAME); + if (err) + IWL_ERROR("failed to create debugfs files\n"); + /* notify iwlcore to init */ iwlcore_low_level_notify(priv, IWLCORE_INIT_EVT); return 0; out_remove_sysfs: sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); + out_uninit_drv: + iwl_uninit_drv(priv); out_free_eeprom: iwl_eeprom_free(priv); out_iounmap: @@ -6702,6 +5322,9 @@ static void __devexit iwl4965_pci_remove(struct pci_dev *pdev) IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n"); + iwl_dbgfs_unregister(priv); + sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); + if (priv->mac80211_registered) { ieee80211_unregister_hw(priv->hw); priv->mac80211_registered = 0; @@ -6729,8 +5352,6 @@ static void __devexit iwl4965_pci_remove(struct pci_dev *pdev) } iwlcore_low_level_notify(priv, IWLCORE_REMOVE_EVT); - iwl_dbgfs_unregister(priv); - sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group); iwl4965_dealloc_ucode_pci(priv); @@ -6756,8 +5377,7 @@ static void __devexit iwl4965_pci_remove(struct pci_dev *pdev) pci_disable_device(pdev); pci_set_drvdata(pdev, NULL); - iwl_free_channel_map(priv); - iwlcore_free_geos(priv); + iwl_uninit_drv(priv); if (priv->ibss_beacon) dev_kfree_skb(priv->ibss_beacon); @@ -6848,10 +5468,6 @@ static int __init iwl4965_init(void) return ret; - -#ifdef CONFIG_IWLWIFI_DEBUG - pci_unregister_driver(&iwl_driver); -#endif error_register: iwl4965_rate_control_unregister(); return ret; |