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path: root/drivers/net/wireless/iwlwifi/iwl-4965.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-4965.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-4965.c369
1 files changed, 328 insertions, 41 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index b207e3e9299..3f1e5f1bf84 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -48,6 +48,7 @@
#include "iwl-agn-led.h"
#include "iwl-agn.h"
#include "iwl-agn-debugfs.h"
+#include "iwl-legacy.h"
static int iwl4965_send_tx_power(struct iwl_priv *priv);
static int iwl4965_hw_get_temperature(struct iwl_priv *priv);
@@ -1377,13 +1378,9 @@ static int iwl4965_send_tx_power(struct iwl_priv *priv)
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
- * the stack trace to find out who is calling this during
- * a scan. */
- IWL_WARN(priv, "TX Power requested while scanning!\n");
+ if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status),
+ "TX Power requested while scanning!\n"))
return -EAGAIN;
- }
band = priv->band == IEEE80211_BAND_2GHZ;
@@ -1447,6 +1444,142 @@ static int iwl4965_send_rxon_assoc(struct iwl_priv *priv,
return ret;
}
+static int iwl4965_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
+{
+ /* cast away the const for active_rxon in this function */
+ struct iwl_rxon_cmd *active_rxon = (void *)&ctx->active;
+ int ret;
+ bool new_assoc =
+ !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK);
+
+ if (!iwl_is_alive(priv))
+ return -EBUSY;
+
+ if (!ctx->is_active)
+ return 0;
+
+ /* always get timestamp with Rx frame */
+ ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK;
+
+ ret = iwl_check_rxon_cmd(priv, ctx);
+ if (ret) {
+ IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
+ return -EINVAL;
+ }
+
+ /*
+ * receive commit_rxon request
+ * abort any previous channel switch if still in process
+ */
+ if (priv->switch_rxon.switch_in_progress &&
+ (priv->switch_rxon.channel != ctx->staging.channel)) {
+ IWL_DEBUG_11H(priv, "abort channel switch on %d\n",
+ le16_to_cpu(priv->switch_rxon.channel));
+ iwl_chswitch_done(priv, false);
+ }
+
+ /* If we don't need to send a full RXON, we can use
+ * iwl_rxon_assoc_cmd which is used to reconfigure filter
+ * and other flags for the current radio configuration. */
+ if (!iwl_full_rxon_required(priv, ctx)) {
+ ret = iwl_send_rxon_assoc(priv, ctx);
+ if (ret) {
+ IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret);
+ return ret;
+ }
+
+ memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
+ iwl_print_rx_config_cmd(priv, ctx);
+ return 0;
+ }
+
+ /* If we are currently associated and the new config requires
+ * an RXON_ASSOC and the new config wants the associated mask enabled,
+ * we must clear the associated from the active configuration
+ * before we apply the new config */
+ if (iwl_is_associated_ctx(ctx) && new_assoc) {
+ IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+
+ ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd,
+ sizeof(struct iwl_rxon_cmd),
+ active_rxon);
+
+ /* If the mask clearing failed then we set
+ * active_rxon back to what it was previously */
+ if (ret) {
+ active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
+ IWL_ERR(priv, "Error clearing ASSOC_MSK (%d)\n", ret);
+ return ret;
+ }
+ iwl_clear_ucode_stations(priv, ctx);
+ iwl_restore_stations(priv, ctx);
+ ret = iwl_restore_default_wep_keys(priv, ctx);
+ if (ret) {
+ IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
+ return ret;
+ }
+ }
+
+ IWL_DEBUG_INFO(priv, "Sending RXON\n"
+ "* with%s RXON_FILTER_ASSOC_MSK\n"
+ "* channel = %d\n"
+ "* bssid = %pM\n",
+ (new_assoc ? "" : "out"),
+ le16_to_cpu(ctx->staging.channel),
+ ctx->staging.bssid_addr);
+
+ iwl_set_rxon_hwcrypto(priv, ctx, !priv->cfg->mod_params->sw_crypto);
+
+ /* Apply the new configuration
+ * RXON unassoc clears the station table in uCode so restoration of
+ * stations is needed after it (the RXON command) completes
+ */
+ if (!new_assoc) {
+ ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd,
+ sizeof(struct iwl_rxon_cmd), &ctx->staging);
+ if (ret) {
+ IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
+ return ret;
+ }
+ IWL_DEBUG_INFO(priv, "Return from !new_assoc RXON.\n");
+ memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
+ iwl_clear_ucode_stations(priv, ctx);
+ iwl_restore_stations(priv, ctx);
+ ret = iwl_restore_default_wep_keys(priv, ctx);
+ if (ret) {
+ IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
+ return ret;
+ }
+ }
+ if (new_assoc) {
+ priv->start_calib = 0;
+ /* Apply the new configuration
+ * RXON assoc doesn't clear the station table in uCode,
+ */
+ ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd,
+ sizeof(struct iwl_rxon_cmd), &ctx->staging);
+ if (ret) {
+ IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
+ return ret;
+ }
+ memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
+ }
+ iwl_print_rx_config_cmd(priv, ctx);
+
+ iwl_init_sensitivity(priv);
+
+ /* If we issue a new RXON command which required a tune then we must
+ * send a new TXPOWER command or we won't be able to Tx any frames */
+ ret = iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
+ if (ret) {
+ IWL_ERR(priv, "Error sending TX power (%d)\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
static int iwl4965_hw_channel_switch(struct iwl_priv *priv,
struct ieee80211_channel_switch *ch_switch)
{
@@ -1554,22 +1687,6 @@ static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
}
/**
- * sign_extend - Sign extend a value using specified bit as sign-bit
- *
- * Example: sign_extend(9, 3) would return -7 as bit3 of 1001b is 1
- * and bit0..2 is 001b which when sign extended to 1111111111111001b is -7.
- *
- * @param oper value to sign extend
- * @param index 0 based bit index (0<=index<32) to sign bit
- */
-static s32 sign_extend(u32 oper, int index)
-{
- u8 shift = 31 - index;
-
- return (s32)(oper << shift) >> shift;
-}
-
-/**
* iwl4965_hw_get_temperature - return the calibrated temperature (in Kelvin)
* @statistics: Provides the temperature reading from the uCode
*
@@ -1606,9 +1723,9 @@ static int iwl4965_hw_get_temperature(struct iwl_priv *priv)
* "initialize" ALIVE response.
*/
if (!test_bit(STATUS_TEMPERATURE, &priv->status))
- vt = sign_extend(R4, 23);
+ vt = sign_extend32(R4, 23);
else
- vt = sign_extend(le32_to_cpu(priv->_agn.statistics.
+ vt = sign_extend32(le32_to_cpu(priv->_agn.statistics.
general.common.temperature), 23);
IWL_DEBUG_TEMP(priv, "Calib values R[1-3]: %d %d %d R4: %d\n", R1, R2, R3, vt);
@@ -2081,6 +2198,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
return;
}
+ txq->time_stamp = jiffies;
info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
memset(&info->status, 0, sizeof(info->status));
@@ -2121,12 +2239,8 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark) &&
- (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)) {
- if (agg->state == IWL_AGG_OFF)
- iwl_wake_queue(priv, txq_id);
- else
- iwl_wake_queue(priv, txq->swq_id);
- }
+ (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA))
+ iwl_wake_queue(priv, txq);
}
} else {
info->status.rates[0].count = tx_resp->failure_frame + 1;
@@ -2150,7 +2264,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark))
- iwl_wake_queue(priv, txq_id);
+ iwl_wake_queue(priv, txq);
}
if (qc && likely(sta_id != IWL_INVALID_STATION))
iwlagn_txq_check_empty(priv, sta_id, tid, txq_id);
@@ -2216,7 +2330,7 @@ static void iwl4965_cancel_deferred_work(struct iwl_priv *priv)
static struct iwl_hcmd_ops iwl4965_hcmd = {
.rxon_assoc = iwl4965_send_rxon_assoc,
- .commit_rxon = iwlagn_commit_rxon,
+ .commit_rxon = iwl4965_commit_rxon,
.set_rxon_chain = iwlagn_set_rxon_chain,
.send_bt_config = iwl_send_bt_config,
};
@@ -2233,12 +2347,155 @@ static void iwl4965_post_scan(struct iwl_priv *priv)
iwlcore_commit_rxon(priv, ctx);
}
+static void iwl4965_post_associate(struct iwl_priv *priv)
+{
+ struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
+ struct ieee80211_vif *vif = ctx->vif;
+ struct ieee80211_conf *conf = NULL;
+ int ret = 0;
+
+ if (!vif || !priv->is_open)
+ return;
+
+ if (vif->type == NL80211_IFTYPE_AP) {
+ IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
+ return;
+ }
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ iwl_scan_cancel_timeout(priv, 200);
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwlcore_commit_rxon(priv, ctx);
+
+ ret = iwl_send_rxon_timing(priv, ctx);
+ if (ret)
+ IWL_WARN(priv, "RXON timing - "
+ "Attempting to continue.\n");
+
+ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
+
+ iwl_set_rxon_ht(priv, &priv->current_ht_config);
+
+ if (priv->cfg->ops->hcmd->set_rxon_chain)
+ priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
+
+ ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid);
+
+ IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n",
+ vif->bss_conf.aid, vif->bss_conf.beacon_int);
+
+ if (vif->bss_conf.use_short_preamble)
+ ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
+ if (vif->bss_conf.use_short_slot)
+ ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+ }
+
+ iwlcore_commit_rxon(priv, ctx);
+
+ IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
+ vif->bss_conf.aid, ctx->active.bssid_addr);
+
+ switch (vif->type) {
+ case NL80211_IFTYPE_STATION:
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ iwlagn_send_beacon_cmd(priv);
+ break;
+ default:
+ IWL_ERR(priv, "%s Should not be called in %d mode\n",
+ __func__, vif->type);
+ break;
+ }
+
+ /* the chain noise calibration will enabled PM upon completion
+ * If chain noise has already been run, then we need to enable
+ * power management here */
+ if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
+ iwl_power_update_mode(priv, false);
+
+ /* Enable Rx differential gain and sensitivity calibrations */
+ iwl_chain_noise_reset(priv);
+ priv->start_calib = 1;
+}
+
+static void iwl4965_config_ap(struct iwl_priv *priv)
+{
+ struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
+ struct ieee80211_vif *vif = ctx->vif;
+ int ret = 0;
+
+ lockdep_assert_held(&priv->mutex);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ /* The following should be done only at AP bring up */
+ if (!iwl_is_associated_ctx(ctx)) {
+
+ /* RXON - unassoc (to set timing command) */
+ ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwlcore_commit_rxon(priv, ctx);
+
+ /* RXON Timing */
+ ret = iwl_send_rxon_timing(priv, ctx);
+ if (ret)
+ IWL_WARN(priv, "RXON timing failed - "
+ "Attempting to continue.\n");
+
+ /* AP has all antennas */
+ priv->chain_noise_data.active_chains =
+ priv->hw_params.valid_rx_ant;
+ iwl_set_rxon_ht(priv, &priv->current_ht_config);
+ if (priv->cfg->ops->hcmd->set_rxon_chain)
+ priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
+
+ ctx->staging.assoc_id = 0;
+
+ if (vif->bss_conf.use_short_preamble)
+ ctx->staging.flags |=
+ RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ ctx->staging.flags &=
+ ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
+ if (vif->bss_conf.use_short_slot)
+ ctx->staging.flags |=
+ RXON_FLG_SHORT_SLOT_MSK;
+ else
+ ctx->staging.flags &=
+ ~RXON_FLG_SHORT_SLOT_MSK;
+ }
+ /* need to send beacon cmd before committing assoc RXON! */
+ iwlagn_send_beacon_cmd(priv);
+ /* restore RXON assoc */
+ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
+ iwlcore_commit_rxon(priv, ctx);
+ }
+ iwlagn_send_beacon_cmd(priv);
+
+ /* FIXME - we need to add code here to detect a totally new
+ * configuration, reset the AP, unassoc, rxon timing, assoc,
+ * clear sta table, add BCAST sta... */
+}
+
static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
.get_hcmd_size = iwl4965_get_hcmd_size,
.build_addsta_hcmd = iwl4965_build_addsta_hcmd,
.chain_noise_reset = iwl4965_chain_noise_reset,
.gain_computation = iwl4965_gain_computation,
- .tx_cmd_protection = iwlcore_tx_cmd_protection,
+ .tx_cmd_protection = iwl_legacy_tx_cmd_protection,
.calc_rssi = iwl4965_calc_rssi,
.request_scan = iwlagn_request_scan,
.post_scan = iwl4965_post_scan,
@@ -2285,14 +2542,12 @@ static struct iwl_lib_ops iwl4965_lib = {
},
.send_tx_power = iwl4965_send_tx_power,
.update_chain_flags = iwl_update_chain_flags,
- .post_associate = iwl_post_associate,
- .config_ap = iwl_config_ap,
- .isr = iwl_isr_legacy,
+ .isr_ops = {
+ .isr = iwl_isr_legacy,
+ },
.temp_ops = {
.temperature = iwl4965_temperature_calib,
},
- .manage_ibss_station = iwlagn_manage_ibss_station,
- .update_bcast_stations = iwl_update_bcast_stations,
.debugfs_ops = {
.rx_stats_read = iwl_ucode_rx_stats_read,
.tx_stats_read = iwl_ucode_tx_stats_read,
@@ -2300,15 +2555,46 @@ static struct iwl_lib_ops iwl4965_lib = {
.bt_stats_read = iwl_ucode_bt_stats_read,
.reply_tx_error = iwl_reply_tx_error_read,
},
- .recover_from_tx_stall = iwl_bg_monitor_recover,
.check_plcp_health = iwl_good_plcp_health,
};
+static const struct iwl_legacy_ops iwl4965_legacy_ops = {
+ .post_associate = iwl4965_post_associate,
+ .config_ap = iwl4965_config_ap,
+ .manage_ibss_station = iwlagn_manage_ibss_station,
+ .update_bcast_stations = iwl_update_bcast_stations,
+};
+
+struct ieee80211_ops iwl4965_hw_ops = {
+ .tx = iwlagn_mac_tx,
+ .start = iwlagn_mac_start,
+ .stop = iwlagn_mac_stop,
+ .add_interface = iwl_mac_add_interface,
+ .remove_interface = iwl_mac_remove_interface,
+ .change_interface = iwl_mac_change_interface,
+ .config = iwl_legacy_mac_config,
+ .configure_filter = iwlagn_configure_filter,
+ .set_key = iwlagn_mac_set_key,
+ .update_tkip_key = iwlagn_mac_update_tkip_key,
+ .conf_tx = iwl_mac_conf_tx,
+ .reset_tsf = iwl_legacy_mac_reset_tsf,
+ .bss_info_changed = iwl_legacy_mac_bss_info_changed,
+ .ampdu_action = iwlagn_mac_ampdu_action,
+ .hw_scan = iwl_mac_hw_scan,
+ .sta_add = iwlagn_mac_sta_add,
+ .sta_remove = iwl_mac_sta_remove,
+ .channel_switch = iwlagn_mac_channel_switch,
+ .flush = iwlagn_mac_flush,
+ .tx_last_beacon = iwl_mac_tx_last_beacon,
+};
+
static const struct iwl_ops iwl4965_ops = {
.lib = &iwl4965_lib,
.hcmd = &iwl4965_hcmd,
.utils = &iwl4965_hcmd_utils,
.led = &iwlagn_led_ops,
+ .legacy = &iwl4965_legacy_ops,
+ .ieee80211_ops = &iwl4965_hw_ops,
};
static struct iwl_base_params iwl4965_base_params = {
@@ -2323,13 +2609,14 @@ static struct iwl_base_params iwl4965_base_params = {
.led_compensation = 61,
.chain_noise_num_beacons = IWL4965_CAL_NUM_BEACONS,
.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
- .monitor_recover_period = IWL_DEF_MONITORING_PERIOD,
+ .wd_timeout = IWL_DEF_WD_TIMEOUT,
.temperature_kelvin = true,
.max_event_log_size = 512,
.tx_power_by_driver = true,
.ucode_tracing = true,
.sensitivity_calib_by_driver = true,
.chain_noise_calib_by_driver = true,
+ .no_agg_framecnt_info = true,
};
struct iwl_cfg iwl4965_agn_cfg = {
@@ -2337,7 +2624,6 @@ struct iwl_cfg iwl4965_agn_cfg = {
.fw_name_pre = IWL4965_FW_PRE,
.ucode_api_max = IWL4965_UCODE_API_MAX,
.ucode_api_min = IWL4965_UCODE_API_MIN,
- .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
.valid_tx_ant = ANT_AB,
.valid_rx_ant = ANT_ABC,
.eeprom_ver = EEPROM_4965_EEPROM_VERSION,
@@ -2345,6 +2631,7 @@ struct iwl_cfg iwl4965_agn_cfg = {
.ops = &iwl4965_ops,
.mod_params = &iwlagn_mod_params,
.base_params = &iwl4965_base_params,
+ .led_mode = IWL_LED_BLINK,
/*
* Force use of chains B and C for scan RX on 5 GHz band
* because the device has off-channel reception on chain A.