iwlwifi: initial contextification

In order to support multiple interfaces, we must move
a lot of data into per-context structures so we can
use the contexts the device offers. To start with,
this makes a lot of code context-aware, more changes
will move more things into the context structure.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

1 files changed, 24 insertions, 22 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index f0a47f42d4b8..82f32305f50e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -347,7 +347,7 @@ static void iwl4965_chain_noise_reset(struct iwl_priv *priv)
         struct iwl_chain_noise_data *data = &(priv->chain_noise_data);
 
         if ((data->state == IWL_CHAIN_NOISE_ALIVE) &&
-             iwl_is_associated(priv)) {
+            iwl_is_any_associated(priv)) {
                 struct iwl_calib_diff_gain_cmd cmd;
 
                 /* clear data for chain noise calibration algorithm */
@@ -1374,6 +1374,7 @@ static int iwl4965_send_tx_power(struct iwl_priv *priv)
         u8 band = 0;
         bool is_ht40 = false;
         u8 ctrl_chan_high = 0;
+        struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
 
         if (test_bit(STATUS_SCANNING, &priv->status)) {
                 /* If this gets hit a lot, switch it to a BUG() and catch
@@ -1385,17 +1386,16 @@ static int iwl4965_send_tx_power(struct iwl_priv *priv)
 
         band = priv->band == IEEE80211_BAND_2GHZ;
 
-        is_ht40 =  is_ht40_channel(priv->active_rxon.flags);
+        is_ht40 = is_ht40_channel(ctx->active.flags);
 
-        if (is_ht40 &&
-            (priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
+        if (is_ht40 && (ctx->active.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
                 ctrl_chan_high = 1;
 
         cmd.band = band;
-        cmd.channel = priv->active_rxon.channel;
+        cmd.channel = ctx->active.channel;
 
         ret = iwl4965_fill_txpower_tbl(priv, band,
-                                le16_to_cpu(priv->active_rxon.channel),
+                                le16_to_cpu(ctx->active.channel),
                                 is_ht40, ctrl_chan_high, &cmd.tx_power);
         if (ret)
                 goto out;
@@ -1406,12 +1406,13 @@ out:
         return ret;
 }
 
-static int iwl4965_send_rxon_assoc(struct iwl_priv *priv)
+static int iwl4965_send_rxon_assoc(struct iwl_priv *priv,
+                                   struct iwl_rxon_context *ctx)
 {
         int ret = 0;
         struct iwl4965_rxon_assoc_cmd rxon_assoc;
-        const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
-        const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon;
+        const struct iwl_rxon_cmd *rxon1 = &ctx->staging;
+        const struct iwl_rxon_cmd *rxon2 = &ctx->active;
 
         if ((rxon1->flags == rxon2->flags) &&
             (rxon1->filter_flags == rxon2->filter_flags) &&
@@ -1426,16 +1427,16 @@ static int iwl4965_send_rxon_assoc(struct iwl_priv *priv)
                 return 0;
         }
 
-        rxon_assoc.flags = priv->staging_rxon.flags;
-        rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
-        rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
-        rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
+        rxon_assoc.flags = ctx->staging.flags;
+        rxon_assoc.filter_flags = ctx->staging.filter_flags;
+        rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
+        rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
         rxon_assoc.reserved = 0;
         rxon_assoc.ofdm_ht_single_stream_basic_rates =
-            priv->staging_rxon.ofdm_ht_single_stream_basic_rates;
+            ctx->staging.ofdm_ht_single_stream_basic_rates;
         rxon_assoc.ofdm_ht_dual_stream_basic_rates =
-            priv->staging_rxon.ofdm_ht_dual_stream_basic_rates;
-        rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain;
+            ctx->staging.ofdm_ht_dual_stream_basic_rates;
+        rxon_assoc.rx_chain_select_flags = ctx->staging.rx_chain;
 
         ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC,
                                      sizeof(rxon_assoc), &rxon_assoc, NULL);
@@ -1448,6 +1449,7 @@ static int iwl4965_send_rxon_assoc(struct iwl_priv *priv)
 static int iwl4965_hw_channel_switch(struct iwl_priv *priv,
                                      struct ieee80211_channel_switch *ch_switch)
 {
+        struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
         int rc;
         u8 band = 0;
         bool is_ht40 = false;
@@ -1458,22 +1460,22 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv,
         u16 ch;
         u32 tsf_low;
         u8 switch_count;
-        u16 beacon_interval = le16_to_cpu(priv->rxon_timing.beacon_interval);
+        u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval);
         struct ieee80211_vif *vif = priv->vif;
         band = priv->band == IEEE80211_BAND_2GHZ;
 
-        is_ht40 = is_ht40_channel(priv->staging_rxon.flags);
+        is_ht40 = is_ht40_channel(ctx->staging.flags);
 
         if (is_ht40 &&
-            (priv->staging_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
+            (ctx->staging.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
                 ctrl_chan_high = 1;
 
         cmd.band = band;
         cmd.expect_beacon = 0;
         ch = ch_switch->channel->hw_value;
         cmd.channel = cpu_to_le16(ch);
-        cmd.rxon_flags = priv->staging_rxon.flags;
-        cmd.rxon_filter_flags = priv->staging_rxon.filter_flags;
+        cmd.rxon_flags = ctx->staging.flags;
+        cmd.rxon_filter_flags = ctx->staging.filter_flags;
         switch_count = ch_switch->count;
         tsf_low = ch_switch->timestamp & 0x0ffffffff;
         /*
@@ -1508,7 +1510,7 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv,
                 cmd.expect_beacon = is_channel_radar(ch_info);
         else {
                 IWL_ERR(priv, "invalid channel switch from %u to %u\n",
-                        priv->active_rxon.channel, ch);
+                        ctx->active.channel, ch);
                 return -EFAULT;
         }