diff options
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-commands.h | 14 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 13 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.h | 9 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-dev.h | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-scan.c | 57 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-tx.c | 14 |
6 files changed, 51 insertions, 62 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h index ba54613ae63..67680a74afd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-commands.h +++ b/drivers/net/wireless/iwlwifi/iwl-commands.h @@ -283,18 +283,20 @@ struct iwl_cmd_header { #define RATE_MCS_SGI_MSK 0x2000 /** - * rate_n_flags Tx antenna masks (4965 has 2 transmitters): - * bit14:15 01 B inactive, A active - * 10 B active, A inactive - * 11 Both active + * rate_n_flags Tx antenna masks + * 4965 has 2 transmitters + * 5100 has 1 transmitter B + * 5150 has 1 transmitter A + * 5300 has 3 transmitters + * 5350 has 3 transmitters + * bit14:16 */ #define RATE_MCS_ANT_POS 14 #define RATE_MCS_ANT_A_MSK 0x04000 #define RATE_MCS_ANT_B_MSK 0x08000 #define RATE_MCS_ANT_C_MSK 0x10000 #define RATE_MCS_ANT_ABC_MSK 0x1C000 - -#define RATE_MCS_ANT_INIT_IND 1 +#define RATE_ANT_NUM 3 #define POWER_TABLE_NUM_ENTRIES 33 #define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32 diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 59dd608b909..20c7ff38291 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -141,7 +141,17 @@ int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) } EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx); - +u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant) +{ + int i; + u8 ind = ant; + for (i = 0; i < RATE_ANT_NUM - 1; i++) { + ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; + if (priv->hw_params.valid_tx_ant & BIT(ind)) + return ind; + } + return ant; +} const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; EXPORT_SYMBOL(iwl_bcast_addr); @@ -938,7 +948,6 @@ int iwl_init_drv(struct iwl_priv *priv) priv->iw_mode = NL80211_IFTYPE_STATION; - priv->use_ant_b_for_management_frame = 1; /* start with ant B */ priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED; /* Choose which receivers/antennas to use */ diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 1a3ad8b1ebd..a2d8afe92be 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -237,7 +237,6 @@ int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq); int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn); int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid); int iwl_txq_check_empty(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id); - /***************************************************** * TX power ****************************************************/ @@ -259,6 +258,13 @@ void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, struct ieee80211_tx_info *info); int iwl_hwrate_to_plcp_idx(u32 rate_n_flags); +u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx); + +static inline u32 iwl_ant_idx_to_flags(u8 ant_idx) +{ + return BIT(ant_idx) << RATE_MCS_ANT_POS; +} + static inline u8 iwl_hw_get_rate(__le32 rate_n_flags) { return le32_to_cpu(rate_n_flags) & 0xFF; @@ -313,6 +319,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd); void iwl_dump_nic_error_log(struct iwl_priv *priv); void iwl_dump_nic_event_log(struct iwl_priv *priv); + /*************** DRIVER STATUS FUNCTIONS *****/ #define STATUS_HCMD_ACTIVE 0 /* host command in progress */ diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index c73315f2394..0f57bf40e8d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -810,12 +810,13 @@ struct iwl_priv { unsigned long scan_start; unsigned long scan_pass_start; unsigned long scan_start_tsf; + struct iwl_scan_cmd *scan; int scan_bands; int one_direct_scan; u8 direct_ssid_len; u8 direct_ssid[IW_ESSID_MAX_SIZE]; - struct iwl_scan_cmd *scan; - u32 scan_tx_ant[IEEE80211_NUM_BANDS]; + u8 scan_tx_ant[IEEE80211_NUM_BANDS]; + u8 mgmt_tx_ant; /* spinlock */ spinlock_t lock; /* protect general shared data */ @@ -874,7 +875,6 @@ struct iwl_priv { u16 active_rate_basic; u8 assoc_station_added; - u8 use_ant_b_for_management_frame; /* Tx antenna selection */ u8 start_calib; struct iwl_sensitivity_data sensitivity_data; struct iwl_chain_noise_data chain_noise_data; diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index 78d16bd7b74..86b74571b51 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -64,12 +64,6 @@ #define IWL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1)))) -static int scan_tx_ant[3] = { - RATE_MCS_ANT_A_MSK, RATE_MCS_ANT_B_MSK, RATE_MCS_ANT_C_MSK -}; - - - static int iwl_is_empty_essid(const char *essid, int essid_len) { /* Single white space is for Linksys APs */ @@ -455,10 +449,11 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv, void iwl_init_scan_params(struct iwl_priv *priv) { + u8 ant_idx = fls(priv->hw_params.valid_tx_ant) - 1; if (!priv->scan_tx_ant[IEEE80211_BAND_5GHZ]) - priv->scan_tx_ant[IEEE80211_BAND_5GHZ] = RATE_MCS_ANT_INIT_IND; + priv->scan_tx_ant[IEEE80211_BAND_5GHZ] = ant_idx; if (!priv->scan_tx_ant[IEEE80211_BAND_2GHZ]) - priv->scan_tx_ant[IEEE80211_BAND_2GHZ] = RATE_MCS_ANT_INIT_IND; + priv->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx; } int iwl_scan_initiate(struct iwl_priv *priv) @@ -670,23 +665,6 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv, return (u16)len; } -static u32 iwl_scan_tx_ant(struct iwl_priv *priv, enum ieee80211_band band) -{ - int i, ind; - - ind = priv->scan_tx_ant[band]; - for (i = 0; i < priv->hw_params.tx_chains_num; i++) { - ind = (ind+1) >= priv->hw_params.tx_chains_num ? 0 : ind+1; - if (priv->hw_params.valid_tx_ant & (1 << ind)) { - priv->scan_tx_ant[band] = ind; - break; - } - } - IWL_DEBUG_SCAN("select TX ANT = %c\n", 'A' + ind); - return scan_tx_ant[ind]; -} - - static void iwl_bg_request_scan(struct work_struct *data) { struct iwl_priv *priv = @@ -699,11 +677,12 @@ static void iwl_bg_request_scan(struct work_struct *data) struct iwl_scan_cmd *scan; struct ieee80211_conf *conf = NULL; int ret = 0; - u32 tx_ant; + u32 rate_flags = 0; u16 cmd_len; enum ieee80211_band band; u8 n_probes = 2; u8 rx_chain = priv->hw_params.valid_rx_ant; + u8 rate; conf = ieee80211_get_hw_conf(priv->hw); @@ -822,23 +801,16 @@ static void iwl_bg_request_scan(struct work_struct *data) if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { band = IEEE80211_BAND_2GHZ; scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; - tx_ant = iwl_scan_tx_ant(priv, band); - if (priv->active_rxon.flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) - scan->tx_cmd.rate_n_flags = - iwl_hw_set_rate_n_flags(IWL_RATE_6M_PLCP, - tx_ant); - else - scan->tx_cmd.rate_n_flags = - iwl_hw_set_rate_n_flags(IWL_RATE_1M_PLCP, - tx_ant | - RATE_MCS_CCK_MSK); + if (priv->active_rxon.flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) { + rate = IWL_RATE_6M_PLCP; + } else { + rate = IWL_RATE_1M_PLCP; + rate_flags = RATE_MCS_CCK_MSK; + } scan->good_CRC_th = 0; } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { band = IEEE80211_BAND_5GHZ; - tx_ant = iwl_scan_tx_ant(priv, band); - scan->tx_cmd.rate_n_flags = - iwl_hw_set_rate_n_flags(IWL_RATE_6M_PLCP, - tx_ant); + rate = IWL_RATE_6M_PLCP; scan->good_CRC_th = IWL_GOOD_CRC_TH; /* Force use of chains B and C (0x6) for scan Rx for 4965 @@ -851,6 +823,11 @@ static void iwl_bg_request_scan(struct work_struct *data) goto done; } + priv->scan_tx_ant[band] = + iwl_toggle_tx_ant(priv, priv->scan_tx_ant[band]); + rate_flags |= iwl_ant_idx_to_flags(priv->scan_tx_ant[band]); + scan->tx_cmd.rate_n_flags = iwl_hw_set_rate_n_flags(rate, rate_flags); + /* MIMO is not used here, but value is required */ scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK | cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) | diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index 87c955e8842..b047fd156c0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -674,11 +674,11 @@ static void iwl_tx_cmd_build_rate(struct iwl_priv *priv, __le16 fc, int sta_id, int is_hcca) { + u32 rate_flags = 0; + int rate_idx; u8 rts_retry_limit = 0; u8 data_retry_limit = 0; u8 rate_plcp; - u16 rate_flags = 0; - int rate_idx; rate_idx = min(ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xffff, IWL_RATE_COUNT - 1); @@ -721,14 +721,8 @@ static void iwl_tx_cmd_build_rate(struct iwl_priv *priv, break; } - /* Alternate between antenna A and B for successive frames */ - if (priv->use_ant_b_for_management_frame) { - priv->use_ant_b_for_management_frame = 0; - rate_flags |= RATE_MCS_ANT_B_MSK; - } else { - priv->use_ant_b_for_management_frame = 1; - rate_flags |= RATE_MCS_ANT_A_MSK; - } + priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant); + rate_flags |= iwl_ant_idx_to_flags(priv->mgmt_tx_ant); } tx_cmd->rts_retry_limit = rts_retry_limit; |