obj-$(CONFIG_IWLAGN) += iwlagn.o
iwlagn-objs := iwl-agn.o iwl-agn-rs.o iwl-agn-led.o iwl-agn-ict.o
iwlagn-objs += iwl-agn-ucode.o iwl-agn-hcmd.o iwl-agn-tx.o
-iwlagn-objs += iwl-agn-lib.o
+iwlagn-objs += iwl-agn-lib.o iwl-agn-rx.o
iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-agn-debugfs.o
iwlagn-$(CONFIG_IWL4965) += iwl-4965.o
--- /dev/null
+/******************************************************************************
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
+ *
+ * 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.GPL.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+
+#include "iwl-dev.h"
+#include "iwl-core.h"
+#include "iwl-calib.h"
+#include "iwl-sta.h"
+#include "iwl-io.h"
+#include "iwl-helpers.h"
+#include "iwl-agn-hw.h"
+#include "iwl-agn.h"
+
+void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+
+{
+ 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->status))
+ iwl_init_sensitivity(priv);
+ }
+}
+
+/* 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
+ = &(priv->statistics.rx.general);
+ int num_active_rx = 0;
+ int total_silence = 0;
+ int bcn_silence_a =
+ le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER;
+ int bcn_silence_b =
+ le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER;
+ int bcn_silence_c =
+ le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER;
+ int last_rx_noise;
+
+ 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 iwl_accumulative_statistics(struct iwl_priv *priv,
+ __le32 *stats)
+{
+ int i;
+ __le32 *prev_stats;
+ u32 *accum_stats;
+ u32 *delta, *max_delta;
+
+ prev_stats = (__le32 *)&priv->statistics;
+ accum_stats = (u32 *)&priv->accum_statistics;
+ delta = (u32 *)&priv->delta_statistics;
+ max_delta = (u32 *)&priv->max_delta;
+
+ for (i = sizeof(__le32); i < sizeof(struct iwl_notif_statistics);
+ i += sizeof(__le32), stats++, prev_stats++, delta++,
+ max_delta++, accum_stats++) {
+ if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
+ *delta = (le32_to_cpu(*stats) -
+ le32_to_cpu(*prev_stats));
+ *accum_stats += *delta;
+ if (*delta > *max_delta)
+ *max_delta = *delta;
+ }
+ }
+
+ /* reset accumulative statistics for "no-counter" type statistics */
+ priv->accum_statistics.general.temperature =
+ priv->statistics.general.temperature;
+ priv->accum_statistics.general.temperature_m =
+ priv->statistics.general.temperature_m;
+ priv->accum_statistics.general.ttl_timestamp =
+ priv->statistics.general.ttl_timestamp;
+ priv->accum_statistics.tx.tx_power.ant_a =
+ priv->statistics.tx.tx_power.ant_a;
+ priv->accum_statistics.tx.tx_power.ant_b =
+ priv->statistics.tx.tx_power.ant_b;
+ priv->accum_statistics.tx.tx_power.ant_c =
+ priv->statistics.tx.tx_power.ant_c;
+}
+#endif
+
+#define REG_RECALIB_PERIOD (60)
+
+/**
+ * iwl_good_plcp_health - checks for plcp error.
+ *
+ * When the plcp error is exceeding the thresholds, reset the radio
+ * to improve the throughput.
+ */
+bool iwl_good_plcp_health(struct iwl_priv *priv,
+ struct iwl_rx_packet *pkt)
+{
+ bool rc = true;
+ int combined_plcp_delta;
+ unsigned int plcp_msec;
+ unsigned long plcp_received_jiffies;
+
+ /*
+ * check for plcp_err and trigger radio reset if it exceeds
+ * the plcp error threshold plcp_delta.
+ */
+ plcp_received_jiffies = jiffies;
+ plcp_msec = jiffies_to_msecs((long) plcp_received_jiffies -
+ (long) priv->plcp_jiffies);
+ priv->plcp_jiffies = plcp_received_jiffies;
+ /*
+ * check to make sure plcp_msec is not 0 to prevent division
+ * by zero.
+ */
+ if (plcp_msec) {
+ combined_plcp_delta =
+ (le32_to_cpu(pkt->u.stats.rx.ofdm.plcp_err) -
+ le32_to_cpu(priv->statistics.rx.ofdm.plcp_err)) +
+ (le32_to_cpu(pkt->u.stats.rx.ofdm_ht.plcp_err) -
+ le32_to_cpu(priv->statistics.rx.ofdm_ht.plcp_err));
+
+ if ((combined_plcp_delta > 0) &&
+ ((combined_plcp_delta * 100) / plcp_msec) >
+ priv->cfg->plcp_delta_threshold) {
+ /*
+ * if plcp_err exceed the threshold,
+ * the following data is printed in csv format:
+ * Text: plcp_err exceeded %d,
+ * Received ofdm.plcp_err,
+ * Current ofdm.plcp_err,
+ * Received ofdm_ht.plcp_err,
+ * Current ofdm_ht.plcp_err,
+ * combined_plcp_delta,
+ * plcp_msec
+ */
+ IWL_DEBUG_RADIO(priv, "plcp_err exceeded %u, "
+ "%u, %u, %u, %u, %d, %u mSecs\n",
+ priv->cfg->plcp_delta_threshold,
+ le32_to_cpu(pkt->u.stats.rx.ofdm.plcp_err),
+ le32_to_cpu(
+ priv->statistics.rx.ofdm.plcp_err),
+ le32_to_cpu(pkt->u.stats.rx.ofdm_ht.plcp_err),
+ le32_to_cpu(
+ priv->statistics.rx.ofdm_ht.plcp_err),
+ combined_plcp_delta, plcp_msec);
+ rc = false;
+ }
+ }
+ return rc;
+}
+
+void iwl_rx_statistics(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+ int change;
+ struct iwl_rx_packet *pkt = rxb_addr(rxb);
+
+
+ IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
+ (int)sizeof(priv->statistics),
+ le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
+
+ change = ((priv->statistics.general.temperature !=
+ pkt->u.stats.general.temperature) ||
+ ((priv->statistics.flag &
+ STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
+ (pkt->u.stats.flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK)));
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+ iwl_accumulative_statistics(priv, (__le32 *)&pkt->u.stats);
+#endif
+ iwl_recover_from_statistics(priv, pkt);
+
+ memcpy(&priv->statistics, &pkt->u.stats,
+ sizeof(priv->statistics));
+
+ set_bit(STATUS_STATISTICS, &priv->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->status)) &&
+ (pkt->hdr.cmd == STATISTICS_NOTIFICATION)) {
+ iwl_rx_calc_noise(priv);
+ queue_work(priv->workqueue, &priv->run_time_calib_work);
+ }
+ if (priv->cfg->ops->lib->temp_ops.temperature && change)
+ priv->cfg->ops->lib->temp_ops.temperature(priv);
+}
+
+void iwl_reply_statistics(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+ 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_statistics, 0,
+ sizeof(struct iwl_notif_statistics));
+ memset(&priv->delta_statistics, 0,
+ sizeof(struct iwl_notif_statistics));
+ memset(&priv->max_delta, 0,
+ sizeof(struct iwl_notif_statistics));
+#endif
+ IWL_DEBUG_RX(priv, "Statistics have been cleared\n");
+ }
+ iwl_rx_statistics(priv, rxb);
+}
(status == TX_STATUS_DIRECT_DONE);
}
+/* rx */
+void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb);
+bool iwl_good_plcp_health(struct iwl_priv *priv,
+ struct iwl_rx_packet *pkt);
+void iwl_rx_statistics(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb);
+void iwl_reply_statistics(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb);
+
/* scan */
void iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif);
int iwl_rx_queue_space(const struct iwl_rx_queue *q);
void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
/* Handlers */
-void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
-bool iwl_good_plcp_health(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt);
bool iwl_good_ack_health(struct iwl_priv *priv,
struct iwl_rx_packet *pkt);
void iwl_recover_from_statistics(struct iwl_priv *priv,
struct iwl_rx_packet *pkt);
-void iwl_rx_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-void iwl_reply_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
}
EXPORT_SYMBOL(iwl_rx_queue_alloc);
-void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-
-{
- 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->status))
- iwl_init_sensitivity(priv);
- }
-}
-EXPORT_SYMBOL(iwl_rx_missed_beacon_notif);
void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
}
EXPORT_SYMBOL(iwl_rx_spectrum_measure_notif);
-
-
-/* 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
- = &(priv->statistics.rx.general);
- int num_active_rx = 0;
- int total_silence = 0;
- int bcn_silence_a =
- le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER;
- int bcn_silence_b =
- le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER;
- int bcn_silence_c =
- le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER;
- int last_rx_noise;
-
- 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 iwl_accumulative_statistics(struct iwl_priv *priv,
- __le32 *stats)
-{
- int i;
- __le32 *prev_stats;
- u32 *accum_stats;
- u32 *delta, *max_delta;
-
- prev_stats = (__le32 *)&priv->statistics;
- accum_stats = (u32 *)&priv->accum_statistics;
- delta = (u32 *)&priv->delta_statistics;
- max_delta = (u32 *)&priv->max_delta;
-
- for (i = sizeof(__le32); i < sizeof(struct iwl_notif_statistics);
- i += sizeof(__le32), stats++, prev_stats++, delta++,
- max_delta++, accum_stats++) {
- if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
- *delta = (le32_to_cpu(*stats) -
- le32_to_cpu(*prev_stats));
- *accum_stats += *delta;
- if (*delta > *max_delta)
- *max_delta = *delta;
- }
- }
-
- /* reset accumulative statistics for "no-counter" type statistics */
- priv->accum_statistics.general.temperature =
- priv->statistics.general.temperature;
- priv->accum_statistics.general.temperature_m =
- priv->statistics.general.temperature_m;
- priv->accum_statistics.general.ttl_timestamp =
- priv->statistics.general.ttl_timestamp;
- priv->accum_statistics.tx.tx_power.ant_a =
- priv->statistics.tx.tx_power.ant_a;
- priv->accum_statistics.tx.tx_power.ant_b =
- priv->statistics.tx.tx_power.ant_b;
- priv->accum_statistics.tx.tx_power.ant_c =
- priv->statistics.tx.tx_power.ant_c;
-}
-#endif
-
-#define REG_RECALIB_PERIOD (60)
-
-/**
- * iwl_good_plcp_health - checks for plcp error.
- *
- * When the plcp error is exceeding the thresholds, reset the radio
- * to improve the throughput.
- */
-bool iwl_good_plcp_health(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt)
-{
- bool rc = true;
- int combined_plcp_delta;
- unsigned int plcp_msec;
- unsigned long plcp_received_jiffies;
-
- /*
- * check for plcp_err and trigger radio reset if it exceeds
- * the plcp error threshold plcp_delta.
- */
- plcp_received_jiffies = jiffies;
- plcp_msec = jiffies_to_msecs((long) plcp_received_jiffies -
- (long) priv->plcp_jiffies);
- priv->plcp_jiffies = plcp_received_jiffies;
- /*
- * check to make sure plcp_msec is not 0 to prevent division
- * by zero.
- */
- if (plcp_msec) {
- combined_plcp_delta =
- (le32_to_cpu(pkt->u.stats.rx.ofdm.plcp_err) -
- le32_to_cpu(priv->statistics.rx.ofdm.plcp_err)) +
- (le32_to_cpu(pkt->u.stats.rx.ofdm_ht.plcp_err) -
- le32_to_cpu(priv->statistics.rx.ofdm_ht.plcp_err));
-
- if ((combined_plcp_delta > 0) &&
- ((combined_plcp_delta * 100) / plcp_msec) >
- priv->cfg->plcp_delta_threshold) {
- /*
- * if plcp_err exceed the threshold,
- * the following data is printed in csv format:
- * Text: plcp_err exceeded %d,
- * Received ofdm.plcp_err,
- * Current ofdm.plcp_err,
- * Received ofdm_ht.plcp_err,
- * Current ofdm_ht.plcp_err,
- * combined_plcp_delta,
- * plcp_msec
- */
- IWL_DEBUG_RADIO(priv, "plcp_err exceeded %u, "
- "%u, %u, %u, %u, %d, %u mSecs\n",
- priv->cfg->plcp_delta_threshold,
- le32_to_cpu(pkt->u.stats.rx.ofdm.plcp_err),
- le32_to_cpu(priv->statistics.rx.ofdm.plcp_err),
- le32_to_cpu(pkt->u.stats.rx.ofdm_ht.plcp_err),
- le32_to_cpu(
- priv->statistics.rx.ofdm_ht.plcp_err),
- combined_plcp_delta, plcp_msec);
- rc = false;
- }
- }
- return rc;
-}
-EXPORT_SYMBOL(iwl_good_plcp_health);
-
void iwl_recover_from_statistics(struct iwl_priv *priv,
struct iwl_rx_packet *pkt)
{
}
EXPORT_SYMBOL(iwl_recover_from_statistics);
-void iwl_rx_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- int change;
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
-
-
- IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
- (int)sizeof(priv->statistics),
- le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
-
- change = ((priv->statistics.general.temperature !=
- pkt->u.stats.general.temperature) ||
- ((priv->statistics.flag &
- STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
- (pkt->u.stats.flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK)));
-
-#ifdef CONFIG_IWLWIFI_DEBUGFS
- iwl_accumulative_statistics(priv, (__le32 *)&pkt->u.stats);
-#endif
- iwl_recover_from_statistics(priv, pkt);
-
- memcpy(&priv->statistics, &pkt->u.stats, sizeof(priv->statistics));
-
- set_bit(STATUS_STATISTICS, &priv->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->status)) &&
- (pkt->hdr.cmd == STATISTICS_NOTIFICATION)) {
- iwl_rx_calc_noise(priv);
- queue_work(priv->workqueue, &priv->run_time_calib_work);
- }
- if (priv->cfg->ops->lib->temp_ops.temperature && change)
- priv->cfg->ops->lib->temp_ops.temperature(priv);
-}
-EXPORT_SYMBOL(iwl_rx_statistics);
-
-void iwl_reply_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- 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_statistics, 0,
- sizeof(struct iwl_notif_statistics));
- memset(&priv->delta_statistics, 0,
- sizeof(struct iwl_notif_statistics));
- memset(&priv->max_delta, 0,
- sizeof(struct iwl_notif_statistics));
-#endif
- IWL_DEBUG_RX(priv, "Statistics have been cleared\n");
- }
- iwl_rx_statistics(priv, rxb);
-}
-EXPORT_SYMBOL(iwl_reply_statistics);
-
/*
* returns non-zero if packet should be dropped
*/
projects / ~andy / linux / commitdiff