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iwlwifi: generic scan TX antenna forcing

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In "iwlwifi: make scan antenna forcing more generic"
I introduced generic scan RX antenna forcing, which
here I rename to make it more evident. Also add scan
TX antenna forcing, since I will need that as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
This commit is contained in:
Johannes Berg 2010-05-18 02:48:36 -07:00 • committed by Reinette Chatre
parent 3839f7ce6d
commit 0e1654fa2b
6 changed files with 19 additions and 11 deletions
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2
drivers/net/wireless/iwlwifi/iwl-4965.c
View file

@ -2326,7 +2326,7 @@ struct iwl_cfg iwl4965_agn_cfg = {
* Force use of chains B and C for scan RX on 5 GHz band * Force use of chains B and C for scan RX on 5 GHz band
* because the device has off-channel reception on chain A. * because the device has off-channel reception on chain A.
*/ */
.scan_antennas[IEEE80211_BAND_5GHZ] = ANT_BC, .scan_rx_antennas[IEEE80211_BAND_5GHZ] = ANT_BC,
}; };
/* Module firmware */ /* Module firmware */

12
drivers/net/wireless/iwlwifi/iwl-agn-lib.c
View file

@ -1150,6 +1150,7 @@ void iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
bool is_active = false; bool is_active = false;
int chan_mod; int chan_mod;
u8 active_chains; u8 active_chains;
u8 scan_tx_antennas = priv->hw_params.valid_tx_ant;
conf = ieee80211_get_hw_conf(priv->hw); conf = ieee80211_get_hw_conf(priv->hw);
@ -1301,11 +1302,14 @@ void iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
band = priv->scan_band; band = priv->scan_band;
if (priv->cfg->scan_antennas[band]) if (priv->cfg->scan_rx_antennas[band])
rx_ant = priv->cfg->scan_antennas[band]; rx_ant = priv->cfg->scan_rx_antennas[band];
priv->scan_tx_ant[band] = if (priv->cfg->scan_tx_antennas[band])
iwl_toggle_tx_ant(priv, priv->scan_tx_ant[band]); scan_tx_antennas = priv->cfg->scan_tx_antennas[band];
priv->scan_tx_ant[band] = iwl_toggle_tx_ant(priv, priv->scan_tx_ant[band],
scan_tx_antennas);
rate_flags |= iwl_ant_idx_to_flags(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); scan->tx_cmd.rate_n_flags = iwl_hw_set_rate_n_flags(rate, rate_flags);

3
drivers/net/wireless/iwlwifi/iwl-agn-tx.c
View file

@ -469,7 +469,8 @@ static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv,
} }
/* Set up antennas */ /* Set up antennas */
priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant); priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
priv->hw_params.valid_tx_ant);
rate_flags |= iwl_ant_idx_to_flags(priv->mgmt_tx_ant); rate_flags |= iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
/* Set the rate in the TX cmd */ /* Set the rate in the TX cmd */

3
drivers/net/wireless/iwlwifi/iwl-agn.c
View file

@ -367,7 +367,8 @@ static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
/* Set up packet rate and flags */ /* Set up packet rate and flags */
rate = iwl_rate_get_lowest_plcp(priv); rate = iwl_rate_get_lowest_plcp(priv);
priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant); priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
priv->hw_params.valid_tx_ant);
rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant); rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
if ((rate >= IWL_FIRST_CCK_RATE) && (rate <= IWL_LAST_CCK_RATE)) if ((rate >= IWL_FIRST_CCK_RATE) && (rate <= IWL_LAST_CCK_RATE))
rate_flags |= RATE_MCS_CCK_MSK; rate_flags |= RATE_MCS_CCK_MSK;

5
drivers/net/wireless/iwlwifi/iwl-core.c
View file

@ -141,13 +141,14 @@ int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
} }
EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx); EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx);
u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant) u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid)
{ {
int i; int i;
u8 ind = ant; u8 ind = ant;
for (i = 0; i < RATE_ANT_NUM - 1; i++) { for (i = 0; i < RATE_ANT_NUM - 1; i++) {
ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
if (priv->hw_params.valid_tx_ant & BIT(ind)) if (valid & BIT(ind))
return ind; return ind;
} }
return ant; return ant;

5
drivers/net/wireless/iwlwifi/iwl-core.h
View file

@ -328,7 +328,8 @@ struct iwl_cfg {
const bool ucode_tracing; const bool ucode_tracing;
const bool sensitivity_calib_by_driver; const bool sensitivity_calib_by_driver;
const bool chain_noise_calib_by_driver; const bool chain_noise_calib_by_driver;
u8 scan_antennas[IEEE80211_NUM_BANDS]; u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
u8 scan_tx_antennas[IEEE80211_NUM_BANDS];
}; };
/*************************** /***************************
@ -499,7 +500,7 @@ int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv); u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv);
u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx); u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid);
static inline u32 iwl_ant_idx_to_flags(u8 ant_idx) static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
{ {