diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-3945.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-3945.c | 125 |
1 files changed, 91 insertions, 34 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 7ca5627cc078..8fdb34222c0a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -19,7 +19,7 @@ * file called LICENSE. * * Contact Information: - * James P. Ketrenos <ipw2100-admin@linux.intel.com> + * Intel Linux Wireless <ilw@linux.intel.com> * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ @@ -200,7 +200,7 @@ static int iwl3945_hwrate_to_plcp_idx(u8 plcp) * priv->eeprom is used to determine if antenna AUX/MAIN are reversed * priv->antenna specifies the antenna diversity mode: * - * IWL_ANTENNA_DIVERISTY - NIC selects best antenna by itself + * IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself * IWL_ANTENNA_MAIN - Force MAIN antenna * IWL_ANTENNA_AUX - Force AUX antenna */ @@ -261,6 +261,37 @@ static inline const char *iwl3945_get_tx_fail_reason(u32 status) } #endif +/* + * get ieee prev rate from rate scale table. + * for A and B mode we need to overright prev + * value + */ +int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate) +{ + int next_rate = iwl3945_get_prev_ieee_rate(rate); + + switch (priv->band) { + case IEEE80211_BAND_5GHZ: + if (rate == IWL_RATE_12M_INDEX) + next_rate = IWL_RATE_9M_INDEX; + else if (rate == IWL_RATE_6M_INDEX) + next_rate = IWL_RATE_6M_INDEX; + break; + case IEEE80211_BAND_2GHZ: + if (!(priv->sta_supp_rates & IWL_OFDM_RATES_MASK) && + iwl3945_is_associated(priv)) { + if (rate == IWL_RATE_11M_INDEX) + next_rate = IWL_RATE_5M_INDEX; + } + break; + + default: + break; + } + + return next_rate; +} + /** * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd @@ -308,6 +339,7 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; u32 status = le32_to_cpu(tx_resp->status); int rate_idx; + int fail; if ((index >= txq->q.n_bd) || (iwl3945_x2_queue_used(&txq->q, index) == 0)) { IWL_ERROR("Read index for DMA queue txq_id (%d) index %d " @@ -318,9 +350,18 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, } info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); + + /* Fill the MRR chain with some info about on-chip retransmissions */ + rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); + if (info->band == IEEE80211_BAND_5GHZ) + rate_idx -= IWL_FIRST_OFDM_RATE; + + fail = tx_resp->failure_frame; + + info->status.rates[0].idx = rate_idx; + info->status.rates[0].count = fail + 1; /* add final attempt */ - info->status.retry_count = tx_resp->failure_frame; /* tx_status->rts_retry_count = tx_resp->failure_rts; */ info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ? IEEE80211_TX_STAT_ACK : 0; @@ -329,10 +370,6 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, txq_id, iwl3945_get_tx_fail_reason(status), status, tx_resp->rate, tx_resp->failure_frame); - rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); - if (info->band == IEEE80211_BAND_5GHZ) - rate_idx -= IWL_FIRST_OFDM_RATE; - info->tx_rate_idx = rate_idx; IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); iwl3945_tx_queue_reclaim(priv, txq_id, index); @@ -756,13 +793,19 @@ int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue * u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *addr) { - int i; + int i, start = IWL_AP_ID; int ret = IWL_INVALID_STATION; unsigned long flags; - DECLARE_MAC_BUF(mac); + + if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) || + (priv->iw_mode == NL80211_IFTYPE_AP)) + start = IWL_STA_ID; + + if (is_broadcast_ether_addr(addr)) + return priv->hw_setting.bcast_sta_id; spin_lock_irqsave(&priv->sta_lock, flags); - for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) + for (i = start; i < priv->hw_setting.max_stations; i++) if ((priv->stations[i].used) && (!compare_ether_addr (priv->stations[i].sta.sta.addr, addr))) { @@ -770,8 +813,8 @@ u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *addr) goto out; } - IWL_DEBUG_INFO("can not find STA %s (total %d)\n", - print_mac(mac, addr), priv->num_stations); + IWL_DEBUG_INFO("can not find STA %pM (total %d)\n", + addr, priv->num_stations); out: spin_unlock_irqrestore(&priv->sta_lock, flags); return ret; @@ -1060,9 +1103,8 @@ int iwl3945_hw_nic_init(struct iwl3945_priv *priv) CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); - rc = iwl3945_poll_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); + rc = iwl3945_poll_direct_bit(priv, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); if (rc < 0) { spin_unlock_irqrestore(&priv->lock, flags); IWL_DEBUG_INFO("Failed to init the card\n"); @@ -1243,8 +1285,7 @@ int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv) IWL_DEBUG_INFO("Card in power save, master is already " "stopped\n"); else { - rc = iwl3945_poll_bit(priv, CSR_RESET, - CSR_RESET_REG_FLAG_MASTER_DISABLED, + rc = iwl3945_poll_direct_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); if (rc < 0) { spin_unlock_irqrestore(&priv->lock, flags); @@ -1269,9 +1310,8 @@ int iwl3945_hw_nic_reset(struct iwl3945_priv *priv) iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); - rc = iwl3945_poll_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); + iwl3945_poll_direct_bit(priv, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); rc = iwl3945_grab_nic_access(priv); if (!rc) { @@ -1830,7 +1870,7 @@ static int iwl3945_hw_reg_comp_txpower_temp(struct iwl3945_priv *priv) ref_temp = (s16)priv->eeprom.groups[ch_info->group_index]. temperature; - /* get power index adjustment based on curr and factory + /* get power index adjustment based on current and factory * temps */ delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature, ref_temp); @@ -2268,7 +2308,8 @@ int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv) } iwl3945_write_direct32(priv, FH_RCSR_CONFIG(0), 0); - rc = iwl3945_poll_direct_bit(priv, FH_RSSR_STATUS, (1 << 24), 1000); + rc = iwl3945_poll_direct_bit(priv, FH_RSSR_STATUS, + FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000); if (rc < 0) IWL_ERROR("Can't stop Rx DMA.\n"); @@ -2337,7 +2378,8 @@ int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv) iwl3945_hw_set_rate_n_flags(iwl3945_rates[i].plcp, 0); table[index].try_cnt = priv->retry_rate; prev_index = iwl3945_get_prev_ieee_rate(i); - table[index].next_rate_index = iwl3945_rates[prev_index].table_rs_index; + table[index].next_rate_index = + iwl3945_rates[prev_index].table_rs_index; } switch (priv->band) { @@ -2345,11 +2387,14 @@ int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv) IWL_DEBUG_RATE("Select A mode rate scale\n"); /* If one of the following CCK rates is used, * have it fall back to the 6M OFDM rate */ - for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) - table[i].next_rate_index = iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index; + for (i = IWL_RATE_1M_INDEX_TABLE; + i <= IWL_RATE_11M_INDEX_TABLE; i++) + table[i].next_rate_index = + iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index; /* Don't fall back to CCK rates */ - table[IWL_RATE_12M_INDEX_TABLE].next_rate_index = IWL_RATE_9M_INDEX_TABLE; + table[IWL_RATE_12M_INDEX_TABLE].next_rate_index = + IWL_RATE_9M_INDEX_TABLE; /* Don't drop out of OFDM rates */ table[IWL_RATE_6M_INDEX_TABLE].next_rate_index = @@ -2360,11 +2405,20 @@ int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv) IWL_DEBUG_RATE("Select B/G mode rate scale\n"); /* If an OFDM rate is used, have it fall back to the * 1M CCK rates */ - for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE; i++) - table[i].next_rate_index = iwl3945_rates[IWL_FIRST_CCK_RATE].table_rs_index; - /* CCK shouldn't fall back to OFDM... */ - table[IWL_RATE_11M_INDEX_TABLE].next_rate_index = IWL_RATE_5M_INDEX_TABLE; + if (!(priv->sta_supp_rates & IWL_OFDM_RATES_MASK) && + iwl3945_is_associated(priv)) { + + index = IWL_FIRST_CCK_RATE; + for (i = IWL_RATE_6M_INDEX_TABLE; + i <= IWL_RATE_54M_INDEX_TABLE; i++) + table[i].next_rate_index = + iwl3945_rates[index].table_rs_index; + + index = IWL_RATE_11M_INDEX_TABLE; + /* CCK shouldn't fall back to OFDM... */ + table[index].next_rate_index = IWL_RATE_5M_INDEX_TABLE; + } break; default: @@ -2428,7 +2482,6 @@ unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv, frame_size = iwl3945_fill_beacon_frame(priv, tx_beacon_cmd->frame, - iwl3945_broadcast_addr, sizeof(frame->u) - sizeof(*tx_beacon_cmd)); BUG_ON(frame_size > MAX_MPDU_SIZE); @@ -2467,13 +2520,17 @@ void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv) static struct iwl_3945_cfg iwl3945_bg_cfg = { .name = "3945BG", - .fw_name = "iwlwifi-3945" IWL3945_UCODE_API ".ucode", + .fw_name_pre = IWL3945_FW_PRE, + .ucode_api_max = IWL3945_UCODE_API_MAX, + .ucode_api_min = IWL3945_UCODE_API_MIN, .sku = IWL_SKU_G, }; static struct iwl_3945_cfg iwl3945_abg_cfg = { .name = "3945ABG", - .fw_name = "iwlwifi-3945" IWL3945_UCODE_API ".ucode", + .fw_name_pre = IWL3945_FW_PRE, + .ucode_api_max = IWL3945_UCODE_API_MAX, + .ucode_api_min = IWL3945_UCODE_API_MIN, .sku = IWL_SKU_A|IWL_SKU_G, }; |