diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 10 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 27 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-rx.c | 9 |
4 files changed, 35 insertions, 12 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index 8239e5508ca..40b207aa8fe 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -878,6 +878,12 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband, rs_index -= IWL_FIRST_OFDM_RATE; mac_flags = info->status.rates[0].flags; mac_index = info->status.rates[0].idx; + /* For HT packets, map MCS to PLCP */ + if (mac_flags & IEEE80211_TX_RC_MCS) { + mac_index &= RATE_MCS_CODE_MSK; /* Remove # of streams */ + if (mac_index >= (IWL_RATE_9M_INDEX - IWL_FIRST_OFDM_RATE)) + mac_index++; + } if ((mac_index < 0) || (tbl_type.is_SGI != !!(mac_flags & IEEE80211_TX_RC_SHORT_GI)) || @@ -886,8 +892,8 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband, (tbl_type.ant_type != info->antenna_sel_tx) || (!!(tx_rate & RATE_MCS_HT_MSK) != !!(mac_flags & IEEE80211_TX_RC_MCS)) || (!!(tx_rate & RATE_MCS_GF_MSK) != !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) || - rs_index != mac_index) { - IWL_DEBUG_RATE(priv, "initial rate does not match 0x%x\n", tx_rate); + (rs_index != mac_index)) { + IWL_DEBUG_RATE(priv, "initial rate %d does not match %d (0x%x)\n", mac_index, rs_index, tx_rate); /* the last LQ command could failed so the LQ in ucode not * the same in driver sync up */ diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 813582467ff..acfd7b40afb 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -96,7 +96,6 @@ EXPORT_SYMBOL(iwl_rates); void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, struct ieee80211_tx_info *info) { - int rate_index; struct ieee80211_tx_rate *r = &info->control.rates[0]; info->antenna_sel_tx = @@ -111,10 +110,7 @@ void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, r->flags |= IEEE80211_TX_RC_DUP_DATA; if (rate_n_flags & RATE_MCS_SGI_MSK) r->flags |= IEEE80211_TX_RC_SHORT_GI; - rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags); - if (info->band == IEEE80211_BAND_5GHZ) - rate_index -= IWL_FIRST_OFDM_RATE; - r->idx = rate_index; + r->idx = iwl_hwrate_to_mac80211_idx(rate_n_flags, info->band); } EXPORT_SYMBOL(iwl_hwrate_to_tx_control); @@ -149,6 +145,27 @@ int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) } EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx); +int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band) +{ + int idx = 0; + int band_offset = 0; + + /* HT rate format: mac80211 wants an MCS number, which is just LSB */ + if (rate_n_flags & RATE_MCS_HT_MSK) { + idx = (rate_n_flags & 0xff); + return idx; + /* Legacy rate format, search for match in table */ + } else { + if (band == IEEE80211_BAND_5GHZ) + band_offset = IWL_FIRST_OFDM_RATE; + for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) + if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) + return idx - band_offset; + } + + return -1; +} + u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant) { int i; diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 62d90364b61..c04d2a27081 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -423,6 +423,7 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force); 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); +int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band); u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c index e34d3fcb6c3..8150c5c3a16 100644 --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -962,6 +962,9 @@ void iwl_rx_reply_rx(struct iwl_priv *priv, return; } + /* This will be used in several places later */ + rate_n_flags = le32_to_cpu(phy_res->rate_n_flags); + /* rx_status carries information about the packet to mac80211 */ rx_status.mactime = le64_to_cpu(phy_res->timestamp); rx_status.freq = @@ -969,10 +972,7 @@ void iwl_rx_reply_rx(struct iwl_priv *priv, rx_status.band = (phy_res->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(phy_res->rate_n_flags)); - if (rx_status.band == IEEE80211_BAND_5GHZ) - rx_status.rate_idx -= IWL_FIRST_OFDM_RATE; - + iwl_hwrate_to_mac80211_idx(rate_n_flags, rx_status.band); rx_status.flag = 0; /* TSF isn't reliable. In order to allow smooth user experience, @@ -1034,7 +1034,6 @@ void iwl_rx_reply_rx(struct iwl_priv *priv, rx_status.flag |= RX_FLAG_SHORTPRE; /* Set up the HT phy flags */ - rate_n_flags = le32_to_cpu(phy_res->rate_n_flags); if (rate_n_flags & RATE_MCS_HT_MSK) rx_status.flag |= RX_FLAG_HT; if (rate_n_flags & RATE_MCS_HT40_MSK) |