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authorWey-Yi Guy <wey-yi.w.guy@intel.com>2011-10-10 07:27:13 -0700
committerJohn W. Linville <linville@tuxdriver.com>2011-10-14 14:48:13 -0400
commit3246c4e6addfbf69b23095b69c5484cd76ddb37b (patch)
tree1f3711d7d78fb04549b9d4ec0120d25d8e6761fd /drivers/net/wireless/iwlwifi/iwl-rx.c
parentc745f55baf63d08d6e9bb20682102fb8bae8f67a (diff)
downloadlwn-3246c4e6addfbf69b23095b69c5484cd76ddb37b.tar.gz
lwn-3246c4e6addfbf69b23095b69c5484cd76ddb37b.zip
iwlagn: rename iwl-rx.c to iwl-agn-rx.c
After driver split, there were no shared functions between agn and legacy; rename iwl-rx.c to iwl-agn-rx.c Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-rx.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-rx.c1139
1 files changed, 0 insertions, 1139 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
deleted file mode 100644
index d406c7288ccc..000000000000
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ /dev/null
@@ -1,1139 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/etherdevice.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <net/mac80211.h>
-#include <asm/unaligned.h>
-#include "iwl-eeprom.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-#include "iwl-agn-calib.h"
-#include "iwl-agn.h"
-#include "iwl-shared.h"
-
-const char *get_cmd_string(u8 cmd)
-{
- switch (cmd) {
- IWL_CMD(REPLY_ALIVE);
- IWL_CMD(REPLY_ERROR);
- IWL_CMD(REPLY_ECHO);
- IWL_CMD(REPLY_RXON);
- IWL_CMD(REPLY_RXON_ASSOC);
- IWL_CMD(REPLY_QOS_PARAM);
- IWL_CMD(REPLY_RXON_TIMING);
- IWL_CMD(REPLY_ADD_STA);
- IWL_CMD(REPLY_REMOVE_STA);
- IWL_CMD(REPLY_REMOVE_ALL_STA);
- IWL_CMD(REPLY_TXFIFO_FLUSH);
- IWL_CMD(REPLY_WEPKEY);
- IWL_CMD(REPLY_TX);
- IWL_CMD(REPLY_LEDS_CMD);
- IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
- IWL_CMD(COEX_PRIORITY_TABLE_CMD);
- IWL_CMD(COEX_MEDIUM_NOTIFICATION);
- IWL_CMD(COEX_EVENT_CMD);
- IWL_CMD(REPLY_QUIET_CMD);
- IWL_CMD(REPLY_CHANNEL_SWITCH);
- IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
- IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
- IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
- IWL_CMD(POWER_TABLE_CMD);
- IWL_CMD(PM_SLEEP_NOTIFICATION);
- IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
- IWL_CMD(REPLY_SCAN_CMD);
- IWL_CMD(REPLY_SCAN_ABORT_CMD);
- IWL_CMD(SCAN_START_NOTIFICATION);
- IWL_CMD(SCAN_RESULTS_NOTIFICATION);
- IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
- IWL_CMD(BEACON_NOTIFICATION);
- IWL_CMD(REPLY_TX_BEACON);
- IWL_CMD(WHO_IS_AWAKE_NOTIFICATION);
- IWL_CMD(QUIET_NOTIFICATION);
- IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
- IWL_CMD(MEASURE_ABORT_NOTIFICATION);
- IWL_CMD(REPLY_BT_CONFIG);
- IWL_CMD(REPLY_STATISTICS_CMD);
- IWL_CMD(STATISTICS_NOTIFICATION);
- IWL_CMD(REPLY_CARD_STATE_CMD);
- IWL_CMD(CARD_STATE_NOTIFICATION);
- IWL_CMD(MISSED_BEACONS_NOTIFICATION);
- IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
- IWL_CMD(SENSITIVITY_CMD);
- IWL_CMD(REPLY_PHY_CALIBRATION_CMD);
- IWL_CMD(REPLY_RX_PHY_CMD);
- IWL_CMD(REPLY_RX_MPDU_CMD);
- IWL_CMD(REPLY_RX);
- IWL_CMD(REPLY_COMPRESSED_BA);
- IWL_CMD(CALIBRATION_CFG_CMD);
- IWL_CMD(CALIBRATION_RES_NOTIFICATION);
- IWL_CMD(CALIBRATION_COMPLETE_NOTIFICATION);
- IWL_CMD(REPLY_TX_POWER_DBM_CMD);
- IWL_CMD(TEMPERATURE_NOTIFICATION);
- IWL_CMD(TX_ANT_CONFIGURATION_CMD);
- IWL_CMD(REPLY_BT_COEX_PROFILE_NOTIF);
- IWL_CMD(REPLY_BT_COEX_PRIO_TABLE);
- IWL_CMD(REPLY_BT_COEX_PROT_ENV);
- IWL_CMD(REPLY_WIPAN_PARAMS);
- IWL_CMD(REPLY_WIPAN_RXON);
- IWL_CMD(REPLY_WIPAN_RXON_TIMING);
- IWL_CMD(REPLY_WIPAN_RXON_ASSOC);
- IWL_CMD(REPLY_WIPAN_QOS_PARAM);
- IWL_CMD(REPLY_WIPAN_WEPKEY);
- IWL_CMD(REPLY_WIPAN_P2P_CHANNEL_SWITCH);
- IWL_CMD(REPLY_WIPAN_NOA_NOTIFICATION);
- IWL_CMD(REPLY_WIPAN_DEACTIVATION_COMPLETE);
- IWL_CMD(REPLY_WOWLAN_PATTERNS);
- IWL_CMD(REPLY_WOWLAN_WAKEUP_FILTER);
- IWL_CMD(REPLY_WOWLAN_TSC_RSC_PARAMS);
- IWL_CMD(REPLY_WOWLAN_TKIP_PARAMS);
- IWL_CMD(REPLY_WOWLAN_KEK_KCK_MATERIAL);
- IWL_CMD(REPLY_WOWLAN_GET_STATUS);
- default:
- return "UNKNOWN";
-
- }
-}
-
-/******************************************************************************
- *
- * Generic RX handler implementations
- *
- ******************************************************************************/
-
-static int iwl_rx_reply_error(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
-
- IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) "
- "seq 0x%04X ser 0x%08X\n",
- le32_to_cpu(pkt->u.err_resp.error_type),
- get_cmd_string(pkt->u.err_resp.cmd_id),
- pkt->u.err_resp.cmd_id,
- le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
- le32_to_cpu(pkt->u.err_resp.error_info));
- return 0;
-}
-
-static int iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
- /*
- * MULTI-FIXME
- * See iwlagn_mac_channel_switch.
- */
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- struct iwl_rxon_cmd *rxon = (void *)&ctx->active;
-
- if (!test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status))
- return 0;
-
- if (!le32_to_cpu(csa->status) && csa->channel == priv->switch_channel) {
- rxon->channel = csa->channel;
- ctx->staging.channel = csa->channel;
- IWL_DEBUG_11H(priv, "CSA notif: channel %d\n",
- le16_to_cpu(csa->channel));
- iwl_chswitch_done(priv, true);
- } else {
- IWL_ERR(priv, "CSA notif (fail) : channel %d\n",
- le16_to_cpu(csa->channel));
- iwl_chswitch_done(priv, false);
- }
- return 0;
-}
-
-
-static int iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_spectrum_notification *report = &(pkt->u.spectrum_notif);
-
- if (!report->state) {
- IWL_DEBUG_11H(priv,
- "Spectrum Measure Notification: Start\n");
- return 0;
- }
-
- memcpy(&priv->measure_report, report, sizeof(*report));
- priv->measurement_status |= MEASUREMENT_READY;
- return 0;
-}
-
-static int iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
-#ifdef CONFIG_IWLWIFI_DEBUG
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
- IWL_DEBUG_RX(priv, "sleep mode: %d, src: %d\n",
- sleep->pm_sleep_mode, sleep->pm_wakeup_src);
-#endif
- return 0;
-}
-
-static int iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- u32 __maybe_unused len =
- le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
- IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled "
- "notification for %s:\n", len,
- get_cmd_string(pkt->hdr.cmd));
- iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, len);
- return 0;
-}
-
-static int iwl_rx_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwlagn_beacon_notif *beacon = (void *)pkt->u.raw;
-#ifdef CONFIG_IWLWIFI_DEBUG
- u16 status = le16_to_cpu(beacon->beacon_notify_hdr.status.status);
- u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
-
- IWL_DEBUG_RX(priv, "beacon status %#x, retries:%d ibssmgr:%d "
- "tsf:0x%.8x%.8x rate:%d\n",
- status & TX_STATUS_MSK,
- beacon->beacon_notify_hdr.failure_frame,
- le32_to_cpu(beacon->ibss_mgr_status),
- le32_to_cpu(beacon->high_tsf),
- le32_to_cpu(beacon->low_tsf), rate);
-#endif
-
- priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
-
- return 0;
-}
-
-/* the threshold ratio of actual_ack_cnt to expected_ack_cnt in percent */
-#define ACK_CNT_RATIO (50)
-#define BA_TIMEOUT_CNT (5)
-#define BA_TIMEOUT_MAX (16)
-
-/**
- * iwl_good_ack_health - checks for ACK count ratios, BA timeout retries.
- *
- * When the ACK count ratio is low and aggregated BA timeout retries exceeding
- * the BA_TIMEOUT_MAX, reload firmware and bring system back to normal
- * operation state.
- */
-static bool iwl_good_ack_health(struct iwl_priv *priv,
- struct statistics_tx *cur)
-{
- int actual_delta, expected_delta, ba_timeout_delta;
- struct statistics_tx *old;
-
- if (priv->agg_tids_count)
- return true;
-
- old = &priv->statistics.tx;
-
- actual_delta = le32_to_cpu(cur->actual_ack_cnt) -
- le32_to_cpu(old->actual_ack_cnt);
- expected_delta = le32_to_cpu(cur->expected_ack_cnt) -
- le32_to_cpu(old->expected_ack_cnt);
-
- /* Values should not be negative, but we do not trust the firmware */
- if (actual_delta <= 0 || expected_delta <= 0)
- return true;
-
- ba_timeout_delta = le32_to_cpu(cur->agg.ba_timeout) -
- le32_to_cpu(old->agg.ba_timeout);
-
- if ((actual_delta * 100 / expected_delta) < ACK_CNT_RATIO &&
- ba_timeout_delta > BA_TIMEOUT_CNT) {
- IWL_DEBUG_RADIO(priv, "deltas: actual %d expected %d ba_timeout %d\n",
- actual_delta, expected_delta, ba_timeout_delta);
-
-#ifdef CONFIG_IWLWIFI_DEBUGFS
- /*
- * This is ifdef'ed on DEBUGFS because otherwise the
- * statistics aren't available. If DEBUGFS is set but
- * DEBUG is not, these will just compile out.
- */
- IWL_DEBUG_RADIO(priv, "rx_detected_cnt delta %d\n",
- priv->delta_stats.tx.rx_detected_cnt);
- IWL_DEBUG_RADIO(priv,
- "ack_or_ba_timeout_collision delta %d\n",
- priv->delta_stats.tx.ack_or_ba_timeout_collision);
-#endif
-
- if (ba_timeout_delta >= BA_TIMEOUT_MAX)
- return false;
- }
-
- return true;
-}
-
-/**
- * iwl_good_plcp_health - checks for plcp error.
- *
- * When the plcp error is exceeding the thresholds, reset the radio
- * to improve the throughput.
- */
-static bool iwl_good_plcp_health(struct iwl_priv *priv,
- struct statistics_rx_phy *cur_ofdm,
- struct statistics_rx_ht_phy *cur_ofdm_ht,
- unsigned int msecs)
-{
- int delta;
- int threshold = priv->cfg->base_params->plcp_delta_threshold;
-
- if (threshold == IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
- IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
- return true;
- }
-
- delta = le32_to_cpu(cur_ofdm->plcp_err) -
- le32_to_cpu(priv->statistics.rx_ofdm.plcp_err) +
- le32_to_cpu(cur_ofdm_ht->plcp_err) -
- le32_to_cpu(priv->statistics.rx_ofdm_ht.plcp_err);
-
- /* Can be negative if firmware reset statistics */
- if (delta <= 0)
- return true;
-
- if ((delta * 100 / msecs) > threshold) {
- IWL_DEBUG_RADIO(priv,
- "plcp health threshold %u delta %d msecs %u\n",
- threshold, delta, msecs);
- return false;
- }
-
- return true;
-}
-
-static void iwl_recover_from_statistics(struct iwl_priv *priv,
- struct statistics_rx_phy *cur_ofdm,
- struct statistics_rx_ht_phy *cur_ofdm_ht,
- struct statistics_tx *tx,
- unsigned long stamp)
-{
- unsigned int msecs;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
- return;
-
- msecs = jiffies_to_msecs(stamp - priv->rx_statistics_jiffies);
-
- /* Only gather statistics and update time stamp when not associated */
- if (!iwl_is_any_associated(priv))
- return;
-
- /* Do not check/recover when do not have enough statistics data */
- if (msecs < 99)
- return;
-
- if (iwlagn_mod_params.ack_check && !iwl_good_ack_health(priv, tx)) {
- IWL_ERR(priv, "low ack count detected, restart firmware\n");
- if (!iwl_force_reset(priv, IWL_FW_RESET, false))
- return;
- }
-
- if (iwlagn_mod_params.plcp_check &&
- !iwl_good_plcp_health(priv, cur_ofdm, cur_ofdm_ht, msecs))
- iwl_force_reset(priv, IWL_RF_RESET, false);
-}
-
-/* Calculate noise level, based on measurements during network silence just
- * before arriving beacon. This measurement can be done only if we know
- * exactly when to expect beacons, therefore only when we're associated. */
-static void iwl_rx_calc_noise(struct iwl_priv *priv)
-{
- struct statistics_rx_non_phy *rx_info;
- int num_active_rx = 0;
- int total_silence = 0;
- int bcn_silence_a, bcn_silence_b, bcn_silence_c;
- int last_rx_noise;
-
- rx_info = &priv->statistics.rx_non_phy;
-
- bcn_silence_a =
- le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER;
- bcn_silence_b =
- le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER;
- bcn_silence_c =
- le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER;
-
- if (bcn_silence_a) {
- total_silence += bcn_silence_a;
- num_active_rx++;
- }
- if (bcn_silence_b) {
- total_silence += bcn_silence_b;
- num_active_rx++;
- }
- if (bcn_silence_c) {
- total_silence += bcn_silence_c;
- num_active_rx++;
- }
-
- /* Average among active antennas */
- if (num_active_rx)
- last_rx_noise = (total_silence / num_active_rx) - 107;
- else
- last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
-
- IWL_DEBUG_CALIB(priv, "inband silence a %u, b %u, c %u, dBm %d\n",
- bcn_silence_a, bcn_silence_b, bcn_silence_c,
- last_rx_noise);
-}
-
-#ifdef CONFIG_IWLWIFI_DEBUGFS
-/*
- * based on the assumption of all statistics counter are in DWORD
- * FIXME: This function is for debugging, do not deal with
- * the case of counters roll-over.
- */
-static void accum_stats(__le32 *prev, __le32 *cur, __le32 *delta,
- __le32 *max_delta, __le32 *accum, int size)
-{
- int i;
-
- for (i = 0;
- i < size / sizeof(__le32);
- i++, prev++, cur++, delta++, max_delta++, accum++) {
- if (le32_to_cpu(*cur) > le32_to_cpu(*prev)) {
- *delta = cpu_to_le32(
- le32_to_cpu(*cur) - le32_to_cpu(*prev));
- le32_add_cpu(accum, le32_to_cpu(*delta));
- if (le32_to_cpu(*delta) > le32_to_cpu(*max_delta))
- *max_delta = *delta;
- }
- }
-}
-
-static void
-iwl_accumulative_statistics(struct iwl_priv *priv,
- struct statistics_general_common *common,
- struct statistics_rx_non_phy *rx_non_phy,
- struct statistics_rx_phy *rx_ofdm,
- struct statistics_rx_ht_phy *rx_ofdm_ht,
- struct statistics_rx_phy *rx_cck,
- struct statistics_tx *tx,
- struct statistics_bt_activity *bt_activity)
-{
-#define ACCUM(_name) \
- accum_stats((__le32 *)&priv->statistics._name, \
- (__le32 *)_name, \
- (__le32 *)&priv->delta_stats._name, \
- (__le32 *)&priv->max_delta_stats._name, \
- (__le32 *)&priv->accum_stats._name, \
- sizeof(*_name));
-
- ACCUM(common);
- ACCUM(rx_non_phy);
- ACCUM(rx_ofdm);
- ACCUM(rx_ofdm_ht);
- ACCUM(rx_cck);
- ACCUM(tx);
- if (bt_activity)
- ACCUM(bt_activity);
-#undef ACCUM
-}
-#else
-static inline void
-iwl_accumulative_statistics(struct iwl_priv *priv,
- struct statistics_general_common *common,
- struct statistics_rx_non_phy *rx_non_phy,
- struct statistics_rx_phy *rx_ofdm,
- struct statistics_rx_ht_phy *rx_ofdm_ht,
- struct statistics_rx_phy *rx_cck,
- struct statistics_tx *tx,
- struct statistics_bt_activity *bt_activity)
-{
-}
-#endif
-
-static int iwl_rx_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- unsigned long stamp = jiffies;
- const int reg_recalib_period = 60;
- int change;
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
- __le32 *flag;
- struct statistics_general_common *common;
- struct statistics_rx_non_phy *rx_non_phy;
- struct statistics_rx_phy *rx_ofdm;
- struct statistics_rx_ht_phy *rx_ofdm_ht;
- struct statistics_rx_phy *rx_cck;
- struct statistics_tx *tx;
- struct statistics_bt_activity *bt_activity;
-
- len -= sizeof(struct iwl_cmd_header); /* skip header */
-
- IWL_DEBUG_RX(priv, "Statistics notification received (%d bytes).\n",
- len);
-
- if (len == sizeof(struct iwl_bt_notif_statistics)) {
- struct iwl_bt_notif_statistics *stats;
- stats = &pkt->u.stats_bt;
- flag = &stats->flag;
- common = &stats->general.common;
- rx_non_phy = &stats->rx.general.common;
- rx_ofdm = &stats->rx.ofdm;
- rx_ofdm_ht = &stats->rx.ofdm_ht;
- rx_cck = &stats->rx.cck;
- tx = &stats->tx;
- bt_activity = &stats->general.activity;
-
-#ifdef CONFIG_IWLWIFI_DEBUGFS
- /* handle this exception directly */
- priv->statistics.num_bt_kills = stats->rx.general.num_bt_kills;
- le32_add_cpu(&priv->statistics.accum_num_bt_kills,
- le32_to_cpu(stats->rx.general.num_bt_kills));
-#endif
- } else if (len == sizeof(struct iwl_notif_statistics)) {
- struct iwl_notif_statistics *stats;
- stats = &pkt->u.stats;
- flag = &stats->flag;
- common = &stats->general.common;
- rx_non_phy = &stats->rx.general;
- rx_ofdm = &stats->rx.ofdm;
- rx_ofdm_ht = &stats->rx.ofdm_ht;
- rx_cck = &stats->rx.cck;
- tx = &stats->tx;
- bt_activity = NULL;
- } else {
- WARN_ONCE(1, "len %d doesn't match BT (%zu) or normal (%zu)\n",
- len, sizeof(struct iwl_bt_notif_statistics),
- sizeof(struct iwl_notif_statistics));
- return 0;
- }
-
- change = common->temperature != priv->statistics.common.temperature ||
- (*flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
- (priv->statistics.flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK);
-
- iwl_accumulative_statistics(priv, common, rx_non_phy, rx_ofdm,
- rx_ofdm_ht, rx_cck, tx, bt_activity);
-
- iwl_recover_from_statistics(priv, rx_ofdm, rx_ofdm_ht, tx, stamp);
-
- priv->statistics.flag = *flag;
- memcpy(&priv->statistics.common, common, sizeof(*common));
- memcpy(&priv->statistics.rx_non_phy, rx_non_phy, sizeof(*rx_non_phy));
- memcpy(&priv->statistics.rx_ofdm, rx_ofdm, sizeof(*rx_ofdm));
- memcpy(&priv->statistics.rx_ofdm_ht, rx_ofdm_ht, sizeof(*rx_ofdm_ht));
- memcpy(&priv->statistics.rx_cck, rx_cck, sizeof(*rx_cck));
- memcpy(&priv->statistics.tx, tx, sizeof(*tx));
-#ifdef CONFIG_IWLWIFI_DEBUGFS
- if (bt_activity)
- memcpy(&priv->statistics.bt_activity, bt_activity,
- sizeof(*bt_activity));
-#endif
-
- priv->rx_statistics_jiffies = stamp;
-
- set_bit(STATUS_STATISTICS, &priv->shrd->status);
-
- /* Reschedule the statistics timer to occur in
- * reg_recalib_period seconds to ensure we get a
- * thermal update even if the uCode doesn't give
- * us one */
- mod_timer(&priv->statistics_periodic, jiffies +
- msecs_to_jiffies(reg_recalib_period * 1000));
-
- if (unlikely(!test_bit(STATUS_SCANNING, &priv->shrd->status)) &&
- (pkt->hdr.cmd == STATISTICS_NOTIFICATION)) {
- iwl_rx_calc_noise(priv);
- queue_work(priv->shrd->workqueue, &priv->run_time_calib_work);
- }
- if (priv->cfg->lib->temperature && change)
- priv->cfg->lib->temperature(priv);
- return 0;
-}
-
-static int iwl_rx_reply_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
-
- if (le32_to_cpu(pkt->u.stats.flag) & UCODE_STATISTICS_CLEAR_MSK) {
-#ifdef CONFIG_IWLWIFI_DEBUGFS
- memset(&priv->accum_stats, 0,
- sizeof(priv->accum_stats));
- memset(&priv->delta_stats, 0,
- sizeof(priv->delta_stats));
- memset(&priv->max_delta_stats, 0,
- sizeof(priv->max_delta_stats));
-#endif
- IWL_DEBUG_RX(priv, "Statistics have been cleared\n");
- }
- iwl_rx_statistics(priv, rxb, cmd);
- return 0;
-}
-
-/* Handle notification from uCode that card's power state is changing
- * due to software, hardware, or critical temperature RFKILL */
-static int iwl_rx_card_state_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
- unsigned long status = priv->shrd->status;
-
- IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s CT:%s\n",
- (flags & HW_CARD_DISABLED) ? "Kill" : "On",
- (flags & SW_CARD_DISABLED) ? "Kill" : "On",
- (flags & CT_CARD_DISABLED) ?
- "Reached" : "Not reached");
-
- if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
- CT_CARD_DISABLED)) {
-
- iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
- iwl_write_direct32(bus(priv), HBUS_TARG_MBX_C,
- HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-
- if (!(flags & RXON_CARD_DISABLED)) {
- iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
- iwl_write_direct32(bus(priv), HBUS_TARG_MBX_C,
- HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
- }
- if (flags & CT_CARD_DISABLED)
- iwl_tt_enter_ct_kill(priv);
- }
- if (!(flags & CT_CARD_DISABLED))
- iwl_tt_exit_ct_kill(priv);
-
- if (flags & HW_CARD_DISABLED)
- set_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
- else
- clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
-
-
- if (!(flags & RXON_CARD_DISABLED))
- iwl_scan_cancel(priv);
-
- if ((test_bit(STATUS_RF_KILL_HW, &status) !=
- test_bit(STATUS_RF_KILL_HW, &priv->shrd->status)))
- wiphy_rfkill_set_hw_state(priv->hw->wiphy,
- test_bit(STATUS_RF_KILL_HW, &priv->shrd->status));
- else
- wake_up(&priv->shrd->wait_command_queue);
- return 0;
-}
-
-static int iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_missed_beacon_notif *missed_beacon;
-
- missed_beacon = &pkt->u.missed_beacon;
- if (le32_to_cpu(missed_beacon->consecutive_missed_beacons) >
- priv->missed_beacon_threshold) {
- IWL_DEBUG_CALIB(priv,
- "missed bcn cnsq %d totl %d rcd %d expctd %d\n",
- le32_to_cpu(missed_beacon->consecutive_missed_beacons),
- le32_to_cpu(missed_beacon->total_missed_becons),
- le32_to_cpu(missed_beacon->num_recvd_beacons),
- le32_to_cpu(missed_beacon->num_expected_beacons));
- if (!test_bit(STATUS_SCANNING, &priv->shrd->status))
- iwl_init_sensitivity(priv);
- }
- return 0;
-}
-
-/* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD).
- * This will be used later in iwl_rx_reply_rx() for REPLY_RX_MPDU_CMD. */
-static int iwl_rx_reply_rx_phy(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
-
- priv->last_phy_res_valid = true;
- memcpy(&priv->last_phy_res, pkt->u.raw,
- sizeof(struct iwl_rx_phy_res));
- return 0;
-}
-
-/*
- * returns non-zero if packet should be dropped
- */
-static int iwl_set_decrypted_flag(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- u32 decrypt_res,
- struct ieee80211_rx_status *stats)
-{
- u16 fc = le16_to_cpu(hdr->frame_control);
-
- /*
- * All contexts have the same setting here due to it being
- * a module parameter, so OK to check any context.
- */
- if (priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags &
- RXON_FILTER_DIS_DECRYPT_MSK)
- return 0;
-
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return 0;
-
- IWL_DEBUG_RX(priv, "decrypt_res:0x%x\n", decrypt_res);
- switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
- case RX_RES_STATUS_SEC_TYPE_TKIP:
- /* The uCode has got a bad phase 1 Key, pushes the packet.
- * Decryption will be done in SW. */
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_BAD_KEY_TTAK)
- break;
-
- case RX_RES_STATUS_SEC_TYPE_WEP:
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_BAD_ICV_MIC) {
- /* bad ICV, the packet is destroyed since the
- * decryption is inplace, drop it */
- IWL_DEBUG_RX(priv, "Packet destroyed\n");
- return -1;
- }
- case RX_RES_STATUS_SEC_TYPE_CCMP:
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_DECRYPT_OK) {
- IWL_DEBUG_RX(priv, "hw decrypt successfully!!!\n");
- stats->flag |= RX_FLAG_DECRYPTED;
- }
- break;
-
- default:
- break;
- }
- return 0;
-}
-
-static void iwl_pass_packet_to_mac80211(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- u16 len,
- u32 ampdu_status,
- struct iwl_rx_mem_buffer *rxb,
- struct ieee80211_rx_status *stats)
-{
- struct sk_buff *skb;
- __le16 fc = hdr->frame_control;
- struct iwl_rxon_context *ctx;
-
- /* We only process data packets if the interface is open */
- if (unlikely(!priv->is_open)) {
- IWL_DEBUG_DROP_LIMIT(priv,
- "Dropping packet while interface is not open.\n");
- return;
- }
-
- /* In case of HW accelerated crypto and bad decryption, drop */
- if (!iwlagn_mod_params.sw_crypto &&
- iwl_set_decrypted_flag(priv, hdr, ampdu_status, stats))
- return;
-
- skb = dev_alloc_skb(128);
- if (!skb) {
- IWL_ERR(priv, "dev_alloc_skb failed\n");
- return;
- }
-
- skb_add_rx_frag(skb, 0, rxb->page, (void *)hdr - rxb_addr(rxb), len);
-
- iwl_update_stats(priv, false, fc, len);
-
- /*
- * Wake any queues that were stopped due to a passive channel tx
- * failure. This can happen because the regulatory enforcement in
- * the device waits for a beacon before allowing transmission,
- * sometimes even after already having transmitted frames for the
- * association because the new RXON may reset the information.
- */
- if (unlikely(ieee80211_is_beacon(fc))) {
- for_each_context(priv, ctx) {
- if (!ctx->last_tx_rejected)
- continue;
- if (compare_ether_addr(hdr->addr3,
- ctx->active.bssid_addr))
- continue;
- ctx->last_tx_rejected = false;
- iwl_trans_wake_any_queue(trans(priv), ctx->ctxid);
- }
- }
-
- memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
-
- ieee80211_rx(priv->hw, skb);
- rxb->page = NULL;
-}
-
-static u32 iwl_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in)
-{
- u32 decrypt_out = 0;
-
- if ((decrypt_in & RX_RES_STATUS_STATION_FOUND) ==
- RX_RES_STATUS_STATION_FOUND)
- decrypt_out |= (RX_RES_STATUS_STATION_FOUND |
- RX_RES_STATUS_NO_STATION_INFO_MISMATCH);
-
- decrypt_out |= (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK);
-
- /* packet was not encrypted */
- if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
- RX_RES_STATUS_SEC_TYPE_NONE)
- return decrypt_out;
-
- /* packet was encrypted with unknown alg */
- if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
- RX_RES_STATUS_SEC_TYPE_ERR)
- return decrypt_out;
-
- /* decryption was not done in HW */
- if ((decrypt_in & RX_MPDU_RES_STATUS_DEC_DONE_MSK) !=
- RX_MPDU_RES_STATUS_DEC_DONE_MSK)
- return decrypt_out;
-
- switch (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) {
-
- case RX_RES_STATUS_SEC_TYPE_CCMP:
- /* alg is CCM: check MIC only */
- if (!(decrypt_in & RX_MPDU_RES_STATUS_MIC_OK))
- /* Bad MIC */
- decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;
- else
- decrypt_out |= RX_RES_STATUS_DECRYPT_OK;
-
- break;
-
- case RX_RES_STATUS_SEC_TYPE_TKIP:
- if (!(decrypt_in & RX_MPDU_RES_STATUS_TTAK_OK)) {
- /* Bad TTAK */
- decrypt_out |= RX_RES_STATUS_BAD_KEY_TTAK;
- break;
- }
- /* fall through if TTAK OK */
- default:
- if (!(decrypt_in & RX_MPDU_RES_STATUS_ICV_OK))
- decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;
- else
- decrypt_out |= RX_RES_STATUS_DECRYPT_OK;
- break;
- }
-
- IWL_DEBUG_RX(priv, "decrypt_in:0x%x decrypt_out = 0x%x\n",
- decrypt_in, decrypt_out);
-
- return decrypt_out;
-}
-
-/* Calc max signal level (dBm) among 3 possible receivers */
-static int iwlagn_calc_rssi(struct iwl_priv *priv,
- struct iwl_rx_phy_res *rx_resp)
-{
- /* data from PHY/DSP regarding signal strength, etc.,
- * contents are always there, not configurable by host
- */
- struct iwlagn_non_cfg_phy *ncphy =
- (struct iwlagn_non_cfg_phy *)rx_resp->non_cfg_phy_buf;
- u32 val, rssi_a, rssi_b, rssi_c, max_rssi;
- u8 agc;
-
- val = le32_to_cpu(ncphy->non_cfg_phy[IWLAGN_RX_RES_AGC_IDX]);
- agc = (val & IWLAGN_OFDM_AGC_MSK) >> IWLAGN_OFDM_AGC_BIT_POS;
-
- /* Find max rssi among 3 possible receivers.
- * These values are measured by the digital signal processor (DSP).
- * They should stay fairly constant even as the signal strength varies,
- * if the radio's automatic gain control (AGC) is working right.
- * AGC value (see below) will provide the "interesting" info.
- */
- val = le32_to_cpu(ncphy->non_cfg_phy[IWLAGN_RX_RES_RSSI_AB_IDX]);
- rssi_a = (val & IWLAGN_OFDM_RSSI_INBAND_A_BITMSK) >>
- IWLAGN_OFDM_RSSI_A_BIT_POS;
- rssi_b = (val & IWLAGN_OFDM_RSSI_INBAND_B_BITMSK) >>
- IWLAGN_OFDM_RSSI_B_BIT_POS;
- val = le32_to_cpu(ncphy->non_cfg_phy[IWLAGN_RX_RES_RSSI_C_IDX]);
- rssi_c = (val & IWLAGN_OFDM_RSSI_INBAND_C_BITMSK) >>
- IWLAGN_OFDM_RSSI_C_BIT_POS;
-
- max_rssi = max_t(u32, rssi_a, rssi_b);
- max_rssi = max_t(u32, max_rssi, rssi_c);
-
- IWL_DEBUG_STATS(priv, "Rssi In A %d B %d C %d Max %d AGC dB %d\n",
- rssi_a, rssi_b, rssi_c, max_rssi, agc);
-
- /* dBm = max_rssi dB - agc dB - constant.
- * Higher AGC (higher radio gain) means lower signal. */
- return max_rssi - agc - IWLAGN_RSSI_OFFSET;
-}
-
-/* Called for REPLY_RX (legacy ABG frames), or
- * REPLY_RX_MPDU_CMD (HT high-throughput N frames). */
-static int iwl_rx_reply_rx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- struct ieee80211_hdr *header;
- struct ieee80211_rx_status rx_status;
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_rx_phy_res *phy_res;
- __le32 rx_pkt_status;
- struct iwl_rx_mpdu_res_start *amsdu;
- u32 len;
- u32 ampdu_status;
- u32 rate_n_flags;
-
- /**
- * REPLY_RX and REPLY_RX_MPDU_CMD are handled differently.
- * REPLY_RX: physical layer info is in this buffer
- * REPLY_RX_MPDU_CMD: physical layer info was sent in separate
- * command and cached in priv->last_phy_res
- *
- * Here we set up local variables depending on which command is
- * received.
- */
- if (pkt->hdr.cmd == REPLY_RX) {
- phy_res = (struct iwl_rx_phy_res *)pkt->u.raw;
- header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*phy_res)
- + phy_res->cfg_phy_cnt);
-
- len = le16_to_cpu(phy_res->byte_count);
- rx_pkt_status = *(__le32 *)(pkt->u.raw + sizeof(*phy_res) +
- phy_res->cfg_phy_cnt + len);
- ampdu_status = le32_to_cpu(rx_pkt_status);
- } else {
- if (!priv->last_phy_res_valid) {
- IWL_ERR(priv, "MPDU frame without cached PHY data\n");
- return 0;
- }
- phy_res = &priv->last_phy_res;
- amsdu = (struct iwl_rx_mpdu_res_start *)pkt->u.raw;
- header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*amsdu));
- len = le16_to_cpu(amsdu->byte_count);
- rx_pkt_status = *(__le32 *)(pkt->u.raw + sizeof(*amsdu) + len);
- ampdu_status = iwl_translate_rx_status(priv,
- le32_to_cpu(rx_pkt_status));
- }
-
- if ((unlikely(phy_res->cfg_phy_cnt > 20))) {
- IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n",
- phy_res->cfg_phy_cnt);
- return 0;
- }
-
- if (!(rx_pkt_status & RX_RES_STATUS_NO_CRC32_ERROR) ||
- !(rx_pkt_status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
- IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n",
- le32_to_cpu(rx_pkt_status));
- return 0;
- }
-
- /* 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.band = (phy_res->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
- IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
- rx_status.freq =
- ieee80211_channel_to_frequency(le16_to_cpu(phy_res->channel),
- rx_status.band);
- rx_status.rate_idx =
- iwlagn_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,
- * this W/A doesn't propagate it to the mac80211 */
- /*rx_status.flag |= RX_FLAG_MACTIME_MPDU;*/
-
- priv->ucode_beacon_time = le32_to_cpu(phy_res->beacon_time_stamp);
-
- /* Find max signal strength (dBm) among 3 antenna/receiver chains */
- rx_status.signal = iwlagn_calc_rssi(priv, phy_res);
-
- iwl_dbg_log_rx_data_frame(priv, len, header);
- IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, TSF %llu\n",
- rx_status.signal, (unsigned long long)rx_status.mactime);
-
- /*
- * "antenna number"
- *
- * It seems that the antenna field in the phy flags value
- * is actually a bit field. This is undefined by radiotap,
- * it wants an actual antenna number but I always get "7"
- * for most legacy frames I receive indicating that the
- * same frame was received on all three RX chains.
- *
- * I think this field should be removed in favor of a
- * new 802.11n radiotap field "RX chains" that is defined
- * as a bitmask.
- */
- rx_status.antenna =
- (le16_to_cpu(phy_res->phy_flags) & RX_RES_PHY_FLAGS_ANTENNA_MSK)
- >> RX_RES_PHY_FLAGS_ANTENNA_POS;
-
- /* set the preamble flag if appropriate */
- if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
- rx_status.flag |= RX_FLAG_SHORTPRE;
-
- /* Set up the HT phy flags */
- if (rate_n_flags & RATE_MCS_HT_MSK)
- rx_status.flag |= RX_FLAG_HT;
- if (rate_n_flags & RATE_MCS_HT40_MSK)
- rx_status.flag |= RX_FLAG_40MHZ;
- if (rate_n_flags & RATE_MCS_SGI_MSK)
- rx_status.flag |= RX_FLAG_SHORT_GI;
-
- iwl_pass_packet_to_mac80211(priv, header, len, ampdu_status,
- rxb, &rx_status);
- return 0;
-}
-
-/**
- * iwl_setup_rx_handlers - Initialize Rx handler callbacks
- *
- * Setup the RX handlers for each of the reply types sent from the uCode
- * to the host.
- */
-void iwl_setup_rx_handlers(struct iwl_priv *priv)
-{
- int (**handlers)(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd);
-
- handlers = priv->rx_handlers;
-
- handlers[REPLY_ERROR] = iwl_rx_reply_error;
- handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa;
- handlers[SPECTRUM_MEASURE_NOTIFICATION] = iwl_rx_spectrum_measure_notif;
- handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif;
- handlers[PM_DEBUG_STATISTIC_NOTIFIC] = iwl_rx_pm_debug_statistics_notif;
- handlers[BEACON_NOTIFICATION] = iwl_rx_beacon_notif;
- handlers[REPLY_ADD_STA] = iwl_add_sta_callback;
-
- /*
- * The same handler is used for both the REPLY to a discrete
- * statistics request from the host as well as for the periodic
- * statistics notifications (after received beacons) from the uCode.
- */
- handlers[REPLY_STATISTICS_CMD] = iwl_rx_reply_statistics;
- handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics;
-
- iwl_setup_rx_scan_handlers(priv);
-
- handlers[CARD_STATE_NOTIFICATION] = iwl_rx_card_state_notif;
- handlers[MISSED_BEACONS_NOTIFICATION] = iwl_rx_missed_beacon_notif;
-
- /* Rx handlers */
- handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy;
- handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx;
-
- /* block ack */
- handlers[REPLY_COMPRESSED_BA] = iwlagn_rx_reply_compressed_ba;
-
- /* init calibration handlers */
- priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] =
- iwlagn_rx_calib_result;
- priv->rx_handlers[REPLY_TX] = iwlagn_rx_reply_tx;
-
- /* set up notification wait support */
- spin_lock_init(&priv->notif_wait_lock);
- INIT_LIST_HEAD(&priv->notif_waits);
- init_waitqueue_head(&priv->notif_waitq);
-
- /* Set up BT Rx handlers */
- if (priv->cfg->lib->bt_rx_handler_setup)
- priv->cfg->lib->bt_rx_handler_setup(priv);
-
-}
-
-int iwl_rx_dispatch(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
- struct iwl_device_cmd *cmd)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- int err = 0;
-
- /*
- * Do the notification wait before RX handlers so
- * even if the RX handler consumes the RXB we have
- * access to it in the notification wait entry.
- */
- if (!list_empty(&priv->notif_waits)) {
- struct iwl_notification_wait *w;
-
- spin_lock(&priv->notif_wait_lock);
- list_for_each_entry(w, &priv->notif_waits, list) {
- if (w->cmd != pkt->hdr.cmd)
- continue;
- IWL_DEBUG_RX(priv,
- "Notif: %s, 0x%02x - wake the callers up\n",
- get_cmd_string(pkt->hdr.cmd),
- pkt->hdr.cmd);
- w->triggered = true;
- if (w->fn)
- w->fn(priv, pkt, w->fn_data);
- }
- spin_unlock(&priv->notif_wait_lock);
-
- wake_up_all(&priv->notif_waitq);
- }
-
- if (priv->pre_rx_handler)
- priv->pre_rx_handler(priv, rxb);
-
- /* Based on type of command response or notification,
- * handle those that need handling via function in
- * rx_handlers table. See iwl_setup_rx_handlers() */
- if (priv->rx_handlers[pkt->hdr.cmd]) {
- priv->rx_handlers_stats[pkt->hdr.cmd]++;
- err = priv->rx_handlers[pkt->hdr.cmd] (priv, rxb, cmd);
- } else {
- /* No handling needed */
- IWL_DEBUG_RX(priv,
- "No handler needed for %s, 0x%02x\n",
- get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
- }
- return err;
-}