*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2008 Intel Corporation. All rights reserved.
+ * 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
* in the file called LICENSE.GPL.
*
* Contact Information:
- * Tomas Winkler <tomas.winkler@intel.com>
+ * Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
- * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
-#include <linux/kernel.h>
+#include <linux/slab.h>
#include <net/mac80211.h>
-#include "iwl-4965.h"
+#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-calib.h"
-#include "iwl-eeprom.h"
+
+/*****************************************************************************
+ * INIT calibrations framework
+ *****************************************************************************/
+
+struct statistics_general_data {
+ u32 beacon_silence_rssi_a;
+ u32 beacon_silence_rssi_b;
+ u32 beacon_silence_rssi_c;
+ u32 beacon_energy_a;
+ u32 beacon_energy_b;
+ u32 beacon_energy_c;
+};
+
+int iwl_send_calib_results(struct iwl_priv *priv)
+{
+ int ret = 0;
+ int i = 0;
+
+ struct iwl_host_cmd hcmd = {
+ .id = REPLY_PHY_CALIBRATION_CMD,
+ .flags = CMD_SIZE_HUGE,
+ };
+
+ for (i = 0; i < IWL_CALIB_MAX; i++) {
+ if ((BIT(i) & priv->hw_params.calib_init_cfg) &&
+ priv->calib_results[i].buf) {
+ hcmd.len = priv->calib_results[i].buf_len;
+ hcmd.data = priv->calib_results[i].buf;
+ ret = iwl_send_cmd_sync(priv, &hcmd);
+ if (ret)
+ goto err;
+ }
+ }
+
+ return 0;
+err:
+ IWL_ERR(priv, "Error %d iteration %d\n", ret, i);
+ return ret;
+}
+EXPORT_SYMBOL(iwl_send_calib_results);
+
+int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len)
+{
+ if (res->buf_len != len) {
+ kfree(res->buf);
+ res->buf = kzalloc(len, GFP_ATOMIC);
+ }
+ if (unlikely(res->buf == NULL))
+ return -ENOMEM;
+
+ res->buf_len = len;
+ memcpy(res->buf, buf, len);
+ return 0;
+}
+EXPORT_SYMBOL(iwl_calib_set);
+
+void iwl_calib_free_results(struct iwl_priv *priv)
+{
+ int i;
+
+ for (i = 0; i < IWL_CALIB_MAX; i++) {
+ kfree(priv->calib_results[i].buf);
+ priv->calib_results[i].buf = NULL;
+ priv->calib_results[i].buf_len = 0;
+ }
+}
+EXPORT_SYMBOL(iwl_calib_free_results);
+
+/*****************************************************************************
+ * RUNTIME calibrations framework
+ *****************************************************************************/
/* "false alarms" are signals that our DSP tries to lock onto,
* but then determines that they are either noise, or transmissions
val = data->nrg_silence_rssi[i];
silence_ref = max(silence_ref, val);
}
- IWL_DEBUG_CALIB("silence a %u, b %u, c %u, 20-bcn max %u\n",
+ IWL_DEBUG_CALIB(priv, "silence a %u, b %u, c %u, 20-bcn max %u\n",
silence_rssi_a, silence_rssi_b, silence_rssi_c,
silence_ref);
max_nrg_cck = (u32) max(max_nrg_cck, (data->nrg_value[i]));
max_nrg_cck += 6;
- IWL_DEBUG_CALIB("rx energy a %u, b %u, c %u, 10-bcn max/min %u\n",
+ IWL_DEBUG_CALIB(priv, "rx energy a %u, b %u, c %u, 10-bcn max/min %u\n",
rx_info->beacon_energy_a, rx_info->beacon_energy_b,
rx_info->beacon_energy_c, max_nrg_cck - 6);
data->num_in_cck_no_fa++;
else
data->num_in_cck_no_fa = 0;
- IWL_DEBUG_CALIB("consecutive bcns with few false alarms = %u\n",
+ IWL_DEBUG_CALIB(priv, "consecutive bcns with few false alarms = %u\n",
data->num_in_cck_no_fa);
/* If we got too many false alarms this time, reduce sensitivity */
if ((false_alarms > max_false_alarms) &&
(data->auto_corr_cck > AUTO_CORR_MAX_TH_CCK)) {
- IWL_DEBUG_CALIB("norm FA %u > max FA %u\n",
+ IWL_DEBUG_CALIB(priv, "norm FA %u > max FA %u\n",
false_alarms, max_false_alarms);
- IWL_DEBUG_CALIB("... reducing sensitivity\n");
+ IWL_DEBUG_CALIB(priv, "... reducing sensitivity\n");
data->nrg_curr_state = IWL_FA_TOO_MANY;
/* Store for "fewer than desired" on later beacon */
data->nrg_silence_ref = silence_ref;
/* increase energy threshold (reduce nrg value)
* to decrease sensitivity */
- if (data->nrg_th_cck >
- (ranges->max_nrg_cck + NRG_STEP_CCK))
- data->nrg_th_cck = data->nrg_th_cck
- - NRG_STEP_CCK;
- else
- data->nrg_th_cck = ranges->max_nrg_cck;
+ data->nrg_th_cck = data->nrg_th_cck - NRG_STEP_CCK;
/* Else if we got fewer than desired, increase sensitivity */
} else if (false_alarms < min_false_alarms) {
data->nrg_curr_state = IWL_FA_TOO_FEW;
data->nrg_auto_corr_silence_diff = (s32)data->nrg_silence_ref -
(s32)silence_ref;
- IWL_DEBUG_CALIB("norm FA %u < min FA %u, silence diff %d\n",
+ IWL_DEBUG_CALIB(priv, "norm FA %u < min FA %u, silence diff %d\n",
false_alarms, min_false_alarms,
data->nrg_auto_corr_silence_diff);
((data->nrg_auto_corr_silence_diff > NRG_DIFF) ||
(data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA))) {
- IWL_DEBUG_CALIB("... increasing sensitivity\n");
+ IWL_DEBUG_CALIB(priv, "... increasing sensitivity\n");
/* Increase nrg value to increase sensitivity */
val = data->nrg_th_cck + NRG_STEP_CCK;
data->nrg_th_cck = min((u32)ranges->min_nrg_cck, val);
} else {
- IWL_DEBUG_CALIB("... but not changing sensitivity\n");
+ IWL_DEBUG_CALIB(priv, "... but not changing sensitivity\n");
}
/* Else we got a healthy number of false alarms, keep status quo */
} else {
- IWL_DEBUG_CALIB(" FA in safe zone\n");
+ IWL_DEBUG_CALIB(priv, " FA in safe zone\n");
data->nrg_curr_state = IWL_FA_GOOD_RANGE;
/* Store for use in "fewer than desired" with later beacon */
* give it some extra margin by reducing sensitivity again
* (but don't go below measured energy of desired Rx) */
if (IWL_FA_TOO_MANY == data->nrg_prev_state) {
- IWL_DEBUG_CALIB("... increasing margin\n");
+ IWL_DEBUG_CALIB(priv, "... increasing margin\n");
if (data->nrg_th_cck > (max_nrg_cck + NRG_MARGIN))
data->nrg_th_cck -= NRG_MARGIN;
else
* Lower value is higher energy, so we use max()!
*/
data->nrg_th_cck = max(max_nrg_cck, data->nrg_th_cck);
- IWL_DEBUG_CALIB("new nrg_th_cck %u\n", data->nrg_th_cck);
+ IWL_DEBUG_CALIB(priv, "new nrg_th_cck %u\n", data->nrg_th_cck);
data->nrg_prev_state = data->nrg_curr_state;
/* If we got too many false alarms this time, reduce sensitivity */
if (false_alarms > max_false_alarms) {
- IWL_DEBUG_CALIB("norm FA %u > max FA %u)\n",
+ IWL_DEBUG_CALIB(priv, "norm FA %u > max FA %u)\n",
false_alarms, max_false_alarms);
val = data->auto_corr_ofdm + AUTO_CORR_STEP_OFDM;
/* Else if we got fewer than desired, increase sensitivity */
else if (false_alarms < min_false_alarms) {
- IWL_DEBUG_CALIB("norm FA %u < min FA %u\n",
+ IWL_DEBUG_CALIB(priv, "norm FA %u < min FA %u\n",
false_alarms, min_false_alarms);
val = data->auto_corr_ofdm - AUTO_CORR_STEP_OFDM;
data->auto_corr_ofdm_mrc_x1 =
max((u32)ranges->auto_corr_min_ofdm_mrc_x1, val);
} else {
- IWL_DEBUG_CALIB("min FA %u < norm FA %u < max FA %u OK\n",
+ IWL_DEBUG_CALIB(priv, "min FA %u < norm FA %u < max FA %u OK\n",
min_false_alarms, false_alarms, max_false_alarms);
}
return 0;
/* Prepare a SENSITIVITY_CMD, send to uCode if values have changed */
static int iwl_sensitivity_write(struct iwl_priv *priv)
{
- int ret = 0;
struct iwl_sensitivity_cmd cmd ;
struct iwl_sensitivity_data *data = NULL;
struct iwl_host_cmd cmd_out = {
.id = SENSITIVITY_CMD,
.len = sizeof(struct iwl_sensitivity_cmd),
- .meta.flags = CMD_ASYNC,
+ .flags = CMD_ASYNC,
.data = &cmd,
};
cpu_to_le16((u16)data->nrg_th_ofdm);
cmd.table[HD_BARKER_CORR_TH_ADD_MIN_INDEX] =
- __constant_cpu_to_le16(190);
+ cpu_to_le16(data->barker_corr_th_min);
cmd.table[HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX] =
- __constant_cpu_to_le16(390);
+ cpu_to_le16(data->barker_corr_th_min_mrc);
cmd.table[HD_OFDM_ENERGY_TH_IN_INDEX] =
- __constant_cpu_to_le16(62);
+ cpu_to_le16(data->nrg_th_cca);
- IWL_DEBUG_CALIB("ofdm: ac %u mrc %u x1 %u mrc_x1 %u thresh %u\n",
+ IWL_DEBUG_CALIB(priv, "ofdm: ac %u mrc %u x1 %u mrc_x1 %u thresh %u\n",
data->auto_corr_ofdm, data->auto_corr_ofdm_mrc,
data->auto_corr_ofdm_x1, data->auto_corr_ofdm_mrc_x1,
data->nrg_th_ofdm);
- IWL_DEBUG_CALIB("cck: ac %u mrc %u thresh %u\n",
+ IWL_DEBUG_CALIB(priv, "cck: ac %u mrc %u thresh %u\n",
data->auto_corr_cck, data->auto_corr_cck_mrc,
data->nrg_th_cck);
/* Don't send command to uCode if nothing has changed */
if (!memcmp(&cmd.table[0], &(priv->sensitivity_tbl[0]),
sizeof(u16)*HD_TABLE_SIZE)) {
- IWL_DEBUG_CALIB("No change in SENSITIVITY_CMD\n");
+ IWL_DEBUG_CALIB(priv, "No change in SENSITIVITY_CMD\n");
return 0;
}
memcpy(&(priv->sensitivity_tbl[0]), &(cmd.table[0]),
sizeof(u16)*HD_TABLE_SIZE);
- ret = iwl_send_cmd(priv, &cmd_out);
- if (ret)
- IWL_ERROR("SENSITIVITY_CMD failed\n");
-
- return ret;
+ return iwl_send_cmd(priv, &cmd_out);
}
void iwl_init_sensitivity(struct iwl_priv *priv)
struct iwl_sensitivity_data *data = NULL;
const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens;
- IWL_DEBUG_CALIB("Start iwl_init_sensitivity\n");
+ if (priv->disable_sens_cal)
+ return;
+
+ IWL_DEBUG_CALIB(priv, "Start iwl_init_sensitivity\n");
/* Clear driver's sensitivity algo data */
data = &(priv->sensitivity_data);
if (ranges == NULL)
- /* can happen if IWLWIFI_RUN_TIME_CALIB is selected
- * but no IWLXXXX_RUN_TIME_CALIB for specific is selected */
return;
memset(data, 0, sizeof(struct iwl_sensitivity_data));
for (i = 0; i < NRG_NUM_PREV_STAT_L; i++)
data->nrg_silence_rssi[i] = 0;
- data->auto_corr_ofdm = 90;
+ data->auto_corr_ofdm = ranges->auto_corr_min_ofdm;
data->auto_corr_ofdm_mrc = ranges->auto_corr_min_ofdm_mrc;
data->auto_corr_ofdm_x1 = ranges->auto_corr_min_ofdm_x1;
data->auto_corr_ofdm_mrc_x1 = ranges->auto_corr_min_ofdm_mrc_x1;
data->auto_corr_cck_mrc = ranges->auto_corr_min_cck_mrc;
data->nrg_th_cck = ranges->nrg_th_cck;
data->nrg_th_ofdm = ranges->nrg_th_ofdm;
+ data->barker_corr_th_min = ranges->barker_corr_th_min;
+ data->barker_corr_th_min_mrc = ranges->barker_corr_th_min_mrc;
+ data->nrg_th_cca = ranges->nrg_th_cca;
data->last_bad_plcp_cnt_ofdm = 0;
data->last_fa_cnt_ofdm = 0;
data->last_fa_cnt_cck = 0;
ret |= iwl_sensitivity_write(priv);
- IWL_DEBUG_CALIB("<<return 0x%X\n", ret);
+ IWL_DEBUG_CALIB(priv, "<<return 0x%X\n", ret);
}
EXPORT_SYMBOL(iwl_init_sensitivity);
void iwl_sensitivity_calibration(struct iwl_priv *priv,
- struct iwl4965_notif_statistics *resp)
+ struct iwl_notif_statistics *resp)
{
u32 rx_enable_time;
u32 fa_cck;
unsigned long flags;
struct statistics_general_data statis;
+ if (priv->disable_sens_cal)
+ return;
+
data = &(priv->sensitivity_data);
if (!iwl_is_associated(priv)) {
- IWL_DEBUG_CALIB("<< - not associated\n");
+ IWL_DEBUG_CALIB(priv, "<< - not associated\n");
return;
}
spin_lock_irqsave(&priv->lock, flags);
if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) {
- IWL_DEBUG_CALIB("<< invalid data.\n");
+ IWL_DEBUG_CALIB(priv, "<< invalid data.\n");
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
spin_unlock_irqrestore(&priv->lock, flags);
- IWL_DEBUG_CALIB("rx_enable_time = %u usecs\n", rx_enable_time);
+ IWL_DEBUG_CALIB(priv, "rx_enable_time = %u usecs\n", rx_enable_time);
if (!rx_enable_time) {
- IWL_DEBUG_CALIB("<< RX Enable Time == 0! \n");
+ IWL_DEBUG_CALIB(priv, "<< RX Enable Time == 0!\n");
return;
}
norm_fa_ofdm = fa_ofdm + bad_plcp_ofdm;
norm_fa_cck = fa_cck + bad_plcp_cck;
- IWL_DEBUG_CALIB("cck: fa %u badp %u ofdm: fa %u badp %u\n", fa_cck,
+ IWL_DEBUG_CALIB(priv, "cck: fa %u badp %u ofdm: fa %u badp %u\n", fa_cck,
bad_plcp_cck, fa_ofdm, bad_plcp_ofdm);
iwl_sens_auto_corr_ofdm(priv, norm_fa_ofdm, rx_enable_time);
}
EXPORT_SYMBOL(iwl_sensitivity_calibration);
+static inline u8 find_first_chain(u8 mask)
+{
+ if (mask & ANT_A)
+ return CHAIN_A;
+ if (mask & ANT_B)
+ return CHAIN_B;
+ return CHAIN_C;
+}
+
/*
* Accumulate 20 beacons of signal and noise statistics for each of
* 3 receivers/antennas/rx-chains, then figure out:
* 2) Differential rx gain settings to balance the 3 receivers.
*/
void iwl_chain_noise_calibration(struct iwl_priv *priv,
- struct iwl4965_notif_statistics *stat_resp)
+ struct iwl_notif_statistics *stat_resp)
{
struct iwl_chain_noise_data *data = NULL;
u8 num_tx_chains;
unsigned long flags;
struct statistics_rx_non_phy *rx_info = &(stat_resp->rx.general);
+ u8 first_chain;
+
+ if (priv->disable_chain_noise_cal)
+ return;
data = &(priv->chain_noise_data);
- /* Accumulate just the first 20 beacons after the first association,
- * then we're done forever. */
+ /*
+ * Accumulate just the first "chain_noise_num_beacons" after
+ * the first association, then we're done forever.
+ */
if (data->state != IWL_CHAIN_NOISE_ACCUMULATE) {
if (data->state == IWL_CHAIN_NOISE_ALIVE)
- IWL_DEBUG_CALIB("Wait for noise calib reset\n");
+ IWL_DEBUG_CALIB(priv, "Wait for noise calib reset\n");
return;
}
spin_lock_irqsave(&priv->lock, flags);
if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) {
- IWL_DEBUG_CALIB(" << Interference data unavailable\n");
+ IWL_DEBUG_CALIB(priv, " << Interference data unavailable\n");
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
/* Make sure we accumulate data for just the associated channel
* (even if scanning). */
if ((rxon_chnum != stat_chnum) || (rxon_band24 != stat_band24)) {
- IWL_DEBUG_CALIB("Stats not from chan=%d, band24=%d\n",
+ IWL_DEBUG_CALIB(priv, "Stats not from chan=%d, band24=%d\n",
rxon_chnum, rxon_band24);
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
- /* Accumulate beacon statistics values across 20 beacons */
+ /*
+ * Accumulate beacon statistics values across
+ * "chain_noise_num_beacons"
+ */
chain_noise_a = le32_to_cpu(rx_info->beacon_silence_rssi_a) &
IN_BAND_FILTER;
chain_noise_b = le32_to_cpu(rx_info->beacon_silence_rssi_b) &
data->chain_signal_b = (chain_sig_b + data->chain_signal_b);
data->chain_signal_c = (chain_sig_c + data->chain_signal_c);
- IWL_DEBUG_CALIB("chan=%d, band24=%d, beacon=%d\n",
+ IWL_DEBUG_CALIB(priv, "chan=%d, band24=%d, beacon=%d\n",
rxon_chnum, rxon_band24, data->beacon_count);
- IWL_DEBUG_CALIB("chain_sig: a %d b %d c %d\n",
+ IWL_DEBUG_CALIB(priv, "chain_sig: a %d b %d c %d\n",
chain_sig_a, chain_sig_b, chain_sig_c);
- IWL_DEBUG_CALIB("chain_noise: a %d b %d c %d\n",
+ IWL_DEBUG_CALIB(priv, "chain_noise: a %d b %d c %d\n",
chain_noise_a, chain_noise_b, chain_noise_c);
- /* If this is the 20th beacon, determine:
+ /* If this is the "chain_noise_num_beacons", determine:
* 1) Disconnected antennas (using signal strengths)
* 2) Differential gain (using silence noise) to balance receivers */
- if (data->beacon_count != CAL_NUM_OF_BEACONS)
+ if (data->beacon_count != priv->cfg->chain_noise_num_beacons)
return;
/* Analyze signal for disconnected antenna */
- average_sig[0] = (data->chain_signal_a) / CAL_NUM_OF_BEACONS;
- average_sig[1] = (data->chain_signal_b) / CAL_NUM_OF_BEACONS;
- average_sig[2] = (data->chain_signal_c) / CAL_NUM_OF_BEACONS;
+ average_sig[0] =
+ (data->chain_signal_a) / priv->cfg->chain_noise_num_beacons;
+ average_sig[1] =
+ (data->chain_signal_b) / priv->cfg->chain_noise_num_beacons;
+ average_sig[2] =
+ (data->chain_signal_c) / priv->cfg->chain_noise_num_beacons;
if (average_sig[0] >= average_sig[1]) {
max_average_sig = average_sig[0];
active_chains = (1 << max_average_sig_antenna_i);
}
- IWL_DEBUG_CALIB("average_sig: a %d b %d c %d\n",
+ IWL_DEBUG_CALIB(priv, "average_sig: a %d b %d c %d\n",
average_sig[0], average_sig[1], average_sig[2]);
- IWL_DEBUG_CALIB("max_average_sig = %d, antenna %d\n",
+ IWL_DEBUG_CALIB(priv, "max_average_sig = %d, antenna %d\n",
max_average_sig, max_average_sig_antenna_i);
/* Compare signal strengths for all 3 receivers. */
data->disconn_array[i] = 1;
else
active_chains |= (1 << i);
- IWL_DEBUG_CALIB("i = %d rssiDelta = %d "
+ IWL_DEBUG_CALIB(priv, "i = %d rssiDelta = %d "
"disconn_array[i] = %d\n",
i, rssi_delta, data->disconn_array[i]);
}
}
+ /*
+ * The above algorithm sometimes fails when the ucode
+ * reports 0 for all chains. It's not clear why that
+ * happens to start with, but it is then causing trouble
+ * because this can make us enable more chains than the
+ * hardware really has.
+ *
+ * To be safe, simply mask out any chains that we know
+ * are not on the device.
+ */
+ active_chains &= priv->hw_params.valid_rx_ant;
+
num_tx_chains = 0;
for (i = 0; i < NUM_RX_CHAINS; i++) {
/* loops on all the bits of
/* there is a Tx antenna connected */
break;
if (num_tx_chains == priv->hw_params.tx_chains_num &&
- data->disconn_array[i]) {
- /* This is the last TX antenna and is also
- * disconnected connect it anyway */
- data->disconn_array[i] = 0;
- active_chains |= ant_msk;
- IWL_DEBUG_CALIB("All Tx chains are disconnected W/A - "
- "declare %d as connected\n", i);
+ data->disconn_array[i]) {
+ /*
+ * If all chains are disconnected
+ * connect the first valid tx chain
+ */
+ first_chain =
+ find_first_chain(priv->cfg->valid_tx_ant);
+ data->disconn_array[first_chain] = 0;
+ active_chains |= BIT(first_chain);
+ IWL_DEBUG_CALIB(priv, "All Tx chains are disconnected W/A - declare %d as connected\n",
+ first_chain);
break;
}
}
- IWL_DEBUG_CALIB("active_chains (bitwise) = 0x%x\n",
- active_chains);
-
/* Save for use within RXON, TX, SCAN commands, etc. */
- /*priv->valid_antenna = active_chains;*/
- /*FIXME: should be reflected in RX chains in RXON */
+ priv->chain_noise_data.active_chains = active_chains;
+ IWL_DEBUG_CALIB(priv, "active_chains (bitwise) = 0x%x\n",
+ active_chains);
/* Analyze noise for rx balance */
- average_noise[0] = ((data->chain_noise_a)/CAL_NUM_OF_BEACONS);
- average_noise[1] = ((data->chain_noise_b)/CAL_NUM_OF_BEACONS);
- average_noise[2] = ((data->chain_noise_c)/CAL_NUM_OF_BEACONS);
+ average_noise[0] =
+ ((data->chain_noise_a) / priv->cfg->chain_noise_num_beacons);
+ average_noise[1] =
+ ((data->chain_noise_b) / priv->cfg->chain_noise_num_beacons);
+ average_noise[2] =
+ ((data->chain_noise_c) / priv->cfg->chain_noise_num_beacons);
for (i = 0; i < NUM_RX_CHAINS; i++) {
if (!(data->disconn_array[i]) &&
}
}
- IWL_DEBUG_CALIB("average_noise: a %d b %d c %d\n",
+ IWL_DEBUG_CALIB(priv, "average_noise: a %d b %d c %d\n",
average_noise[0], average_noise[1],
average_noise[2]);
- IWL_DEBUG_CALIB("min_average_noise = %d, antenna %d\n",
+ IWL_DEBUG_CALIB(priv, "min_average_noise = %d, antenna %d\n",
min_average_noise, min_average_noise_antenna_i);
- priv->cfg->ops->utils->gain_computation(priv, average_noise,
- min_average_noise_antenna_i, min_average_noise);
+ if (priv->cfg->ops->utils->gain_computation)
+ priv->cfg->ops->utils->gain_computation(priv, average_noise,
+ min_average_noise_antenna_i, min_average_noise,
+ find_first_chain(priv->cfg->valid_rx_ant));
+
+ /* Some power changes may have been made during the calibration.
+ * Update and commit the RXON
+ */
+ if (priv->cfg->ops->lib->update_chain_flags)
+ priv->cfg->ops->lib->update_chain_flags(priv);
+
+ data->state = IWL_CHAIN_NOISE_DONE;
+ iwl_power_update_mode(priv, false);
}
EXPORT_SYMBOL(iwl_chain_noise_calibration);
+
+void iwl_reset_run_time_calib(struct iwl_priv *priv)
+{
+ int i;
+ memset(&(priv->sensitivity_data), 0,
+ sizeof(struct iwl_sensitivity_data));
+ memset(&(priv->chain_noise_data), 0,
+ sizeof(struct iwl_chain_noise_data));
+ for (i = 0; i < NUM_RX_CHAINS; i++)
+ priv->chain_noise_data.delta_gain_code[i] =
+ CHAIN_NOISE_DELTA_GAIN_INIT_VAL;
+
+ /* Ask for statistics now, the uCode will send notification
+ * periodically after association */
+ iwl_send_statistics_request(priv, CMD_ASYNC, true);
+}
+EXPORT_SYMBOL(iwl_reset_run_time_calib);
+
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff