cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Use is subject to license terms.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Copyright (c) 2008, Intel Corporation
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * All rights reserved.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Sun elects to have this file available under and governed by the BSD
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * license (see below for full license text). However, the following
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * notice accompanied the original version of this file:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * This file is provided under a dual BSD/GPLv2 license. When using or
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * redistributing this file, you may do so under either license.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * GPL LICENSE SUMMARY
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * This program is free software; you can redistribute it and/or modify
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * it under the terms of version 2 of the GNU Geeral Public License as
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * published by the Free Software Foundation.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * This program is distributed in the hope that it will be useful, but
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * WITHOUT ANY WARRANTY; without even the implied warranty of
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * General Public License for more details.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * You should have received a copy of the GNU General Public License
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * along with this program; if not, write to the Free Software
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * The full GNU General Public License is included in this distribution
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * in the file called LICENSE.GPL.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Contact Information:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * James P. Ketrenos <ipw2100-admin@linux.intel.com>
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * BSD LICENSE
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * All rights reserved.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Redistribution and use in source and binary forms, with or without
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * modification, are permitted provided that the following conditions
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * * Redistributions of source code must retain the above copyright
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * notice, this list of conditions and the following disclaimer.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * * Redistributions in binary form must reproduce the above copyright
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * notice, this list of conditions and the following disclaimer in
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * the documentation and/or other materials provided with the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * distribution.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * * Neither the name Intel Corporation nor the names of its
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * contributors may be used to endorse or promote products derived
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * from this software without specific prior written permission.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#ifndef _IWK_CALIBRATION_H_
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define _IWK_CALIBRATION_H_
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Most Tx and Rx calibration is done by uCode during the initialization
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * phase of uCode boot. Driver must calibrate only:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1) Tx power (depends on temperature)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2) Receiver gain balance (and detect disconnected antennas)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 3) Receiver sensitivity (to optimize signal detection)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* START TEMPERATURE */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 4965 temperature calculation.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * The driver must calculate the device temperature before calculating
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * a txpower setting (amplifier gain is temperature dependent). The
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * calculation uses 4 measurements, 3 of which (R1, R2, R3) are calibration
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * values used for the life of the driver, and one of which (R4) is the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * real-time temperature indicator.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * uCode provides all 4 values to the driver via the "initialize alive"
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * notification (see struct iwk_init_alive_resp). After the runtime uCode
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * image loads, uCode updates the R4 value via statistics notifications
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (see STATISTICS_NOTIFICATION), which occur after each received beacon
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * when associated, or can be requested via REPLY_STATISTICS_CMD.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * NOTE: uCode provides the R4 value as a 23-bit signed value. Driver
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * must sign-extend to 32 bits before applying formula below.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * degrees Kelvin = ((97 * 259 * (R4 - R2) / (R3 - R1)) / 100) + 8
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * NOTE: The basic formula is 259 * (R4-R2) / (R3-R1). The 97/100 is
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * an additional correction, which should be centered around 0 degrees
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Celsius (273 degrees Kelvin). The 8 (3 percent of 273) compensates for
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * centering the 97/100 correction around 0 degrees K.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Add 273 to Kelvin value to find degrees Celsius, for comparing current
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * temperature with factory-measured temperatures when calculating txpower
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* END TEMPERATURE */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* START TXPOWER */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 4965 txpower calculations rely on information from three sources:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2) "initialize" alive notification
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 3) statistics notifications
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * EEPROM data consists of:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1) Regulatory information (max txpower and channel usage flags) is provided
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * separately for each channel that can possibly supported by 4965.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 40 MHz wide (.11n fat) channels are listed separately from 20 MHz
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (legacy) channels.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * See struct iwk_eep_channel for format, and struct iwk_eep for
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * locations in EEPROM.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2) Factory txpower calibration information is provided separately for
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * sub-bands of contiguous channels. 2.4GHz has just one sub-band,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * but 5 GHz has several sub-bands.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * In addition, per-band (2.4 and 5 Ghz) saturation txpowers are provided.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * See struct iwk_eep_calib_info (and the tree of structures contained
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * within it) for format, and struct iwk_eep for locations in EEPROM.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * "Initialization alive" notification (see struct iwk_init_alive_resp)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * consists of:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1) Temperature calculation parameters.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2) Power supply voltage measurement.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 3) Tx gain compensation to balance 2 transmitters for MIMO use.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Statistics notifications deliver:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1) Current values for temperature param R4.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * To calculate a txpower setting for a given desired target txpower, channel,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * modulation bit rate, and transmitter chain (4965 has 2 transmitters to
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * support MIMO and transmit diversity), driver must do the following:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1) Compare desired txpower vs. (EEPROM) regulatory limit for this channel.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Do not exceed regulatory limit; reduce target txpower if necessary.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * If setting up txpowers for MIMO rates (rate indexes 8-15, 24-31),
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2 transmitters will be used simultaneously; driver must reduce the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * regulatory limit by 3 dB (half-power) for each transmitter, so the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * combined total output of the 2 transmitters is within regulatory limits.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2) Compare target txpower vs. (EEPROM) saturation txpower *reduced by
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * backoff for this bit rate*. Do not exceed (saturation - backoff[rate]);
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * reduce target txpower if necessary.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Backoff values below are in 1/2 dB units (equivalent to steps in
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * txpower gain tables):
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * OFDM 6 - 36 MBit: 10 steps (5 dB)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * OFDM 48 MBit: 15 steps (7.5 dB)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * OFDM 54 MBit: 17 steps (8.5 dB)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * OFDM 60 MBit: 20 steps (10 dB)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * CCK all rates: 10 steps (5 dB)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Backoff values apply to saturation txpower on a per-transmitter basis;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * when using MIMO (2 transmitters), each transmitter uses the same
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * saturation level provided in EEPROM, and the same backoff values;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * no reduction (such as with regulatory txpower limits) is required.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Saturation and Backoff values apply equally to 20 Mhz (legacy) channel
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * widths and 40 Mhz (.11n fat) channel widths; there is no separate
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * factory measurement for fat channels.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * The result of this step is the final target txpower. The rest of
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * the steps figure out the proper settings for the device.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 3) Determine (EEPROM) calibration subband for the target channel, by
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * comparing against first and last channels in each subband
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (see struct iwk_eep_calib_subband_info).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 4) Linearly interpolate (EEPROM) factory calibration measurement sets,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * referencing the 2 factory-measured (sample) channels within the subband.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Interpolation is based on difference between target channel's frequency
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * and the sample channels' frequencies. Since channel numbers are based
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * on frequency (5 MHz between each channel number), this is equivalent
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * to interpolating based on channel number differences.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Note that the sample channels may or may not be the channels at the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * edges of the subband. The target channel may be "outside" of the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * span of the sampled channels.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Driver may choose the pair (for 2 Tx chains) of measurements (see
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * struct iwk_eep_calib_channel_info) for which the actual measured
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * txpower comes closest to the desired txpower. Usually, though,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * the middle set of measurements is closest to the regulatory limits,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * and is therefore a good choice for all txpower calculations.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Driver should interpolate both members of the chosen measurement pair,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * i.e. for both Tx chains (radio transmitters), unless the driver knows
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * that only one of the chains will be used (e.g. only one tx antenna
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * connected, but this should be unusual).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Driver should interpolate factory values for temperature, gain table
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * index, and actual power. The power amplifier detector values are
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * not used by the driver.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * If the target channel happens to be one of the sample channels, the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * results should agree with the sample channel's measurements!
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 5) Find difference between desired txpower and (interpolated)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * factory-measured txpower. Using (interpolated) factory gain table index
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * as a starting point, adjust this index lower to increase txpower,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * or higher to decrease txpower, until the target txpower is reached.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Each step in the gain table is 1/2 dB.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * For example, if factory measured txpower is 16 dBm, and target txpower
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * is 13 dBm, add 6 steps to the factory gain index to reduce txpower
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 6) Find difference between current device temperature and (interpolated)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * factory-measured temperature for sub-band. Factory values are in
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * degrees Celsius. To calculate current temperature, see comments for
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * "4965 temperature calculation".
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * If current temperature is higher than factory temperature, driver must
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * increase gain (lower gain table index), and vice versa.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Temperature affects gain differently for different channels:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2.4 GHz all channels: 3.5 degrees per half-dB step
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 5 GHz channels 34-43: 4.5 degrees per half-dB step
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 5 GHz channels >= 44: 4.0 degrees per half-dB step
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * NOTE: Temperature can increase rapidly when transmitting, especially
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * with heavy traffic at high txpowers. Driver should update
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * temperature calculations often under these conditions to
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * maintain strong txpower in the face of rising temperature.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 7) Find difference between current power supply voltage indicator
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (from "initialize alive") and factory-measured power supply voltage
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * indicator (EEPROM).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * If the current voltage is higher (indicator is lower) than factory
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * voltage, gain should be reduced (gain table index increased) by:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (eeprom - current) / 7
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * If the current voltage is lower (indicator is higher) than factory
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * voltage, gain should be increased (gain table index decreased) by:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2 * (current - eeprom) / 7
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * If number of index steps in either direction turns out to be > 2,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * something is wrong ... just use 0.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * NOTE: Voltage compensation is independent of band/channel.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * NOTE: "Initialize" uCode measures current voltage, which is assumed
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * to be constant after this initial measurement. Voltage
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * compensation for txpower (number of steps in gain table)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * may be calculated once and used until the next uCode bootload.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 8) If setting up txpowers for MIMO rates (rate indexes 8-15, 24-31),
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * adjust txpower for each transmitter chain, so txpower is balanced
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * between the two chains. There are 5 pairs of tx_atten[group][chain]
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * values in "initialize alive", one pair for each of 5 channel ranges:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Group 0: 5 GHz channel 34-43
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Group 1: 5 GHz channel 44-70
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Group 2: 5 GHz channel 71-124
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Group 3: 5 GHz channel 125-200
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Group 4: 2.4 GHz all channels
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Add the tx_atten[group][chain] value to the index for the target chain.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * The values are signed, but are in pairs of 0 and a non-negative number,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * so as to reduce gain (if necessary) of the "hotter" channel. This
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * avoids any need to double-check for regulatory compliance after
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 9) If setting up for a CCK rate, lower the gain by adding a CCK compensation
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * value to the index:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Hardware rev B: 9 steps (4.5 dB)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Hardware rev C: 5 steps (2.5 dB)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * bits [3:2], 1 = B, 2 = C.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * NOTE: This compensation is in addition to any saturation backoff that
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * might have been applied in an earlier step.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 10) Select the gain table, based on band (2.4 vs 5 GHz).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Limit the adjusted index to stay within the table!
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 11) Read gain table entries for DSP and radio gain, place into appropriate
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * location(s) in command.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* Temperature calibration offset is 3% 0C in Kelvin */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define TEMPERATURE_CALIB_KELVIN_OFFSET 8
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define TEMPERATURE_CALIB_A_VAL 259
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define KELVIN_TO_CELSIUS(x) ((x)-273)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CELSIUS_TO_KELVIN(x) ((x)+273)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* First and last channels of all groups */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CALIB_IWK_TX_ATTEN_GR1_FCH 34
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CALIB_IWK_TX_ATTEN_GR1_LCH 43
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CALIB_IWK_TX_ATTEN_GR2_FCH 44
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CALIB_IWK_TX_ATTEN_GR2_LCH 70
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CALIB_IWK_TX_ATTEN_GR3_FCH 71
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CALIB_IWK_TX_ATTEN_GR3_LCH 124
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CALIB_IWK_TX_ATTEN_GR4_FCH 125
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CALIB_IWK_TX_ATTEN_GR4_LCH 200
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CALIB_IWK_TX_ATTEN_GR5_FCH 1
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CALIB_IWK_TX_ATTEN_GR5_LCH 20
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* Limit range of txpower output target to be between these values */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_TX_POWER_TARGET_POWER_MIN (0) /* 0 dBm = 1 milliwatt */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_TX_POWER_TARGET_POWER_MAX (16) /* 16 dBm */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define TX_POWER_IWK_ILLEGAL_VOLTAGE (-10000)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 4965 power supply voltage compensation
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define TX_POWER_IWK_VOLTAGE_CODES_PER_03V (7)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* Limit range of calculated temperature to be between these Kelvin values */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_TX_POWER_TEMPERATURE_MIN (263)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_TX_POWER_TEMPERATURE_MAX (410)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinaunion iwk_tx_power_dual_stream {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint8_t radio_tx_gain[2];
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint8_t dsp_predis_atten[2];
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define POWER_TABLE_NUM_ENTRIES (33)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define POWER_TABLE_CCK_ENTRY (32)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * When MIMO is used (2 transmitters operating simultaneously), driver should
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * limit each transmitter to deliver a max of 3 dB below the regulatory limit
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * for the device. That is, half power for each transmitter, so total power
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * is within regulatory limits.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * The value "6" represents number of steps in gain table to reduce power.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Each step is 1/2 dB.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_TX_POWER_MIMO_REGULATORY_COMPENSATION (6)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * CCK gain compensation.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * When calculating txpowers for CCK, after making sure that the target power
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * is within regulatory and saturation limits, driver must additionally
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * back off gain by adding these values to the gain table index.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_TX_POWER_CCK_COMPENSATION_C_STEP (5)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Gain tables.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * The following tables contain pair of values for setting txpower, i.e.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * gain settings for the output of the device's digital signal processor (DSP),
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * and for the analog gain structure of the transmitter.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Each entry in the gain tables represents a step of 1/2 dB. Note that these
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * are *relative* steps, not indications of absolute output power. Output
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * power varies with temperature, voltage, and channel frequency, and also
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * requires consideration of average power (to satisfy regulatory constraints),
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * and peak power (to avoid distortion of the output signal).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Each entry contains two values:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * linear value that multiplies the output of the digital signal processor,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * before being sent to the analog radio.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2) Radio gain. This sets the analog gain of the radio Tx path.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * It is a coarser setting, and behaves in a logarithmic (dB) fashion.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * EEPROM contains factory calibration data for txpower. This maps actual
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * measured txpower levels to gain settings in the "well known" tables
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * below ("well-known" means here that both factory calibration *and* the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * driver work with the same table).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * There are separate tables for 2.4 GHz and 5 GHz bands. The 5 GHz table
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * has an extension (into negative indexes), in case the driver needs to
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * boost power setting for high device temperatures (higher than would be
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * present during factory calibration). A 5 Ghz EEPROM index of "40"
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * corresponds to the 49th entry in the table used by the driver.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define MIN_TX_GAIN_INDEX (0) /* highest gain, lowest idx, 2.4 */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define MIN_TX_GAIN_INDEX_52GHZ_EXT (-9) /* highest gain, lowest idx, 5 */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct gain_entry {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint8_t radio;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastatic const struct gain_entry gains_table[2][108] = {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* 5.2GHz power gain index table */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China {123, 0x3F}, /* highest txpower */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* 2.4GHz power gain index table */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China {110, 0x3f}, /* highest txpower */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* END TXPOWER */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct statistics_div {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t tx_on_a;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t tx_on_b;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t exec_time;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t probe_time;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t reserved1;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t reserved2;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct statistics_dbg {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t burst_check;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t burst_count;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t reserved[4];
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct statistics_general {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t temperature;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t temperature_m;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China struct statistics_dbg dbg;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t sleep_time;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t slots_out;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t slots_idle;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t ttl_timestamp;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China struct statistics_div div;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t rx_enable_counter;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t reserved1;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t reserved2;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t reserved3;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct statistics_tx_non_phy_agg {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t ba_timeout;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t ba_reschedule_frames;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t scd_query_agg_frame_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t scd_query_no_agg;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t scd_query_agg;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t scd_query_mismatch;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t frame_not_ready;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t underrun;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t bt_prio_kill;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t rx_ba_rsp_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t reserved2;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t reserved3;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct statistics_tx {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t preamble_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t rx_detected_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t bt_prio_defer_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t bt_prio_kill_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t few_bytes_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t cts_timeout;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t ack_timeout;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t expected_ack_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t actual_ack_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t dump_msdu_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t burst_abort_next_frame_mismatch_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t burst_abort_missing_next_frame_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t cts_timeout_collision;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t ack_or_ba_timeout_collision;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China struct statistics_tx_non_phy_agg agg;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct statistics_rx_ht_phy {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t plcp_err;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t overrun_err;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t early_overrun_err;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t crc32_good;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t crc32_err;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t mh_format_err;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t agg_crc32_good;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t agg_mpdu_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t agg_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t reserved2;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct statistics_rx_non_phy {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t bogus_cts; /* CTS received when not expecting CTS */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t bogus_ack; /* ACK received when not expecting ACK */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t non_bssid_frames; /* number of frames with BSSID that */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* doesn't belong to the STA BSSID */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t filtered_frames; /* count frames that were dumped in the */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* filtering process */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t non_channel_beacons; /* beacons with our bss id but not on */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* our serving channel */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t channel_beacons; /* beacons with our bss id and in our */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* serving channel */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t num_missed_bcon; /* number of missed beacons */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t adc_rx_saturation_time; /* count in 0.8us units the time */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* the ADC was in saturation */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t ina_detection_search_time; /* total time (in 0.8us) */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* searched for INA */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_silence_rssi_a; /* RSSI silence after beacon frame */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_silence_rssi_b; /* RSSI silence after beacon frame */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_silence_rssi_c; /* RSSI silence after beacon frame */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t interference_data_flag; /* flag for interference data */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* availability. 1 when data is */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* available. */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t channel_load; /* counts RX Enable time */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t dsp_false_alarms; /* DSP false alarm (both OFDM */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China /* and CCK) counter */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_rssi_a;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_rssi_b;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_rssi_c;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_energy_a;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_energy_b;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_energy_c;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct statistics_rx_phy {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t ina_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t fina_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t plcp_err;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t crc32_err;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t overrun_err;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t early_overrun_err;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t crc32_good;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t false_alarm_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t fina_sync_err_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t sfd_timeout;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t fina_timeout;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t unresponded_rts;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t rxe_frame_limit_overrun;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t sent_ack_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t sent_cts_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t sent_ba_rsp_cnt;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t dsp_self_kill;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t mh_format_err;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t re_acq_main_rssi_sum;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t reserved3;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct statistics_rx {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China struct statistics_rx_phy ofdm;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China struct statistics_rx_phy cck;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China struct statistics_rx_non_phy general;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China struct statistics_rx_ht_phy ofdm_ht;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct iwk_notif_statistics {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t flag;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China struct statistics_rx rx;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China struct statistics_tx tx;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China struct statistics_general general;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* START Receiver gain balance */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * This command sets the relative gains of 4965's 3 radio receiver chains.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * After the first association, driver should accumulate signal and noise
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * statistics from the STATISTICS_NOTIFICATIONs that follow the first 20
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * beacons from the associated network (don't collect statistics that come
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * in from scanning, or any other non-network source).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * DISCONNECTED ANTENNA:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Driver should determine which antennas are actually connected, by comparing
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * average beacon signal levels for the 3 Rx chains. Accumulate (add) the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * following values over 20 beacons, one accumulator for each of the chains
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * a/b/c, from struct statistics_rx_non_phy:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Find the strongest signal from among a/b/c. Compare the other two to the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * strongest. If any signal is more than 15 dB (times 20, unless you
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * divide the accumulated values by 20) below the strongest, the driver
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * considers that antenna to be disconnected, and should not try to use that
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * antenna/chain for Rx or Tx. If both A and B seem to be disconnected,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * driver should declare the stronger one as connected, and attempt to use it
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (A and B are the only 2 Tx chains!).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * RX BALANCE:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Driver should balance the 3 receivers (but just the ones that are connected
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * to antennas, see above) for gain, by comparing the average signal levels
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * detected during the silence after each beacon (background noise).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Accumulate (add) the following values over 20 beacons, one accumulator for
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * each of the chains a/b/c, from struct statistics_rx_non_phy:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Find the weakest background noise level from among a/b/c. This Rx chain
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * will be the reference, with 0 gain adjustment. Attenuate other channels by
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * finding noise difference:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (accum_noise[i] - accum_noise[reference]) / 30
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * For use in diff_gain_[abc] fields of struct iwk_calibration_cmd, the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * driver should limit the difference results to a range of 0-3 (0-4.5 dB),
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * and set bit 2 to indicate "reduce gain". The value for the reference
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (weakest) chain should be "0".
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * diff_gain_[abc] bit fields:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2: (1) reduce gain, (0) increase gain
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1-0: amount of gain, units of 1.5 dB
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define RX_CHAINS_NUM (3)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define CHAIN_GAIN_DIFF_INIT_VAL (4)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_GAIN_DIFF_ALIVE (0)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_GAIN_DIFF_ACCUMULATE (1)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_GAIN_DIFF_CALIBRATED (2)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define INTERFERENCE_DATA_AVAILABLE (1)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define BEACON_NUM_20 (20)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define MAX_ALLOWED_DIFF (15)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct iwk_rx_gain_diff {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint8_t state;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t beacon_count;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint8_t gain_diff_send;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_stren_a;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_stren_b;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t beacon_stren_c;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t noise_stren_a;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t noise_stren_b;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t noise_stren_c;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint8_t disconnect_chain[RX_CHAINS_NUM];
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint8_t connected_chains;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint8_t gain_diff_chain[RX_CHAINS_NUM];
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* END Receiver gain balance */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* START Receiver sensitivity */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * SENSITIVITY_CMD = 0xa8
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * This command sets up the Rx signal detector for a sensitivity level that
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * is high enough to lock onto all signals within the associated network,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * but low enough to ignore signals that are below a certain threshold, so as
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * not to have too many "false alarms". False alarms are signals that the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Rx DSP tries to lock onto, but then discards after determining that they
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * The optimum number of false alarms is between 5 and 50 per 200 TUs
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * time listening, not transmitting). Driver must adjust sensitivity so that
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * the ratio of actual false alarms to actual Rx time falls within this range.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * While associated, uCode delivers STATISTICS_NOTIFICATIONs after each
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * received beacon. These provide information to the driver to analyze the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * sensitivity. Don't analyze statistics that come in from scanning, or any
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * other non-associated-network source. Pertinent statistics include:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * From "general" statistics (struct statistics_rx_non_phy):
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Measure of energy of desired signal. Used for establishing a level
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * below which the device does not detect signals.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Measure of background noise in silent period after beacon.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * channel_load
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * uSecs of actual Rx time during beacon period (varies according to
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * how much time was spent transmitting).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * false_alarm_cnt
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Signal locks abandoned early (before phy-level header).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Signal locks abandoned late (during phy-level header).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * NOTE: Both false_alarm_cnt and plcp_err increment monotonically from
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * beacon to beacon, i.e. each value is an accumulation of all errors
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * before and including the latest beacon. Values will wrap around to 0
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * after counting up to 2^32 - 1. Driver must differentiate vs.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * previous beacon's values to determine # false alarms in the current
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * beacon period.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Total number of false alarms = false_alarms + plcp_errs
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * For OFDM, adjust the following table entries in struct iwk_rx_sensitivity_cmd
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (notice that the start points for OFDM are at or close to settings for
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * maximum sensitivity):
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * START / MIN / MAX
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * If actual rate of OFDM false alarms (+ plcp_errors) is too high
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (greater than 50 for each 204.8 msecs listening), reduce sensitivity
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * by *adding* 1 to all 4 of the table entries above, up to the max for
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * each entry. Conversely, if false alarm rate is too low (less than 5
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * for each 204.8 msecs listening), *subtract* 1 from each entry to
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * increase sensitivity.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * For CCK sensitivity, keep track of the following:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1). 20-beacon history of maximum background noise, indicated by
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 3 receivers. For any given beacon, the "silence reference" is
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * the maximum of last 60 samples (20 beacons * 3 receivers).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2). 10-beacon history of strongest signal level, as indicated
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * i.e. the strength of the signal through the best receiver at the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * moment. These measurements are "upside down", with lower values
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * for stronger signals, so max energy will be *minimum* value.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Then for any given beacon, the driver must determine the *weakest*
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * of the strongest signals; this is the minimum level that needs to be
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * successfully detected, when using the best receiver at the moment.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * "Max cck energy" is the maximum (higher value means lower energy!)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * of the last 10 minima. Once this is determined, driver must add
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * a little margin by adding "6" to it.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 3). Number of consecutive beacon periods with too few false alarms.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Reset this to 0 at the first beacon period that falls within the
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * "good" range (5 to 50 false alarms per 204.8 milliseconds rx).
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Then, adjust the following CCK table entries in struct iwk_rx_sensitivity_cmd
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (notice that the start points for CCK are at maximum sensitivity):
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * START / MIN / MAX
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * If actual rate of CCK false alarms (+ plcp_errors) is too high
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (greater than 50 for each 204.8 msecs listening), method for reducing
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * sensitivity is:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * up to max 400.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * sensitivity has been reduced a significant amount; bring it up to
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * a moderate 161. Otherwise, *add* 3, up to max 200.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * sensitivity has been reduced only a moderate or small amount;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * down to min 0. Otherwise (if gain has been significantly reduced),
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * don't change the HD_MIN_ENERGY_CCK_DET_INDEX value.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * b) Save a snapshot of the "silence reference".
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * If actual rate of CCK false alarms (+ plcp_errors) is too low
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (less than 5 for each 204.8 msecs listening), method for increasing
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * sensitivity is used only if:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1a) Previous beacon did not have too many false alarms
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1b) AND difference between previous "silence reference" and current
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * "silence reference" (prev - current) is 2 or more,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * OR 2) 100 or more consecutive beacon periods have had rate of
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * less than 5 false alarms per 204.8 milliseconds rx time.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Method for increasing sensitivity:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * down to min 125.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * down to min 200.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * If actual rate of CCK false alarms (+ plcp_errors) is within good range
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * (between 5 and 50 for each 204.8 msecs listening):
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 1) Save a snapshot of the silence reference.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * 2) If previous beacon had too many CCK false alarms (+ plcp_errors),
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * give some extra margin to energy threshold by *subtracting* 8
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * from value in HD_MIN_ENERGY_CCK_DET_INDEX.
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * For all cases (too few, too many, good range), make sure that the CCK
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * detection threshold (energy) is below the energy level for robust
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * detection over the past 10 beacon periods, the "Max cck energy".
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Lower values mean higher energy; this means making sure that the value
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy".
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * Driver should set the following entries to fixed values:
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_MIN_ENERGY_OFDM_DET_INDEX 100
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_BARKER_CORR_TH_ADD_MIN_INDEX 190
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX 390
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China * HD_OFDM_ENERGY_TH_IN_INDEX 62
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_SENSITIVITY_CALIB_ALLOW_MSK (1 << 0)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_SENSITIVITY_OFDM_UPDATE_MSK (1 << 1)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_SENSITIVITY_CCK_UPDATE_MSK (1 << 2)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define MIN_ENERGY_CCK_DET_IDX (0)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define MIN_ENERGY_OFDM_DET_IDX (1)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define AUTO_CORR32_X1_TH_ADD_MIN_IDX (2)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX (3)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX (4)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define AUTO_CORR32_X4_TH_ADD_MIN_IDX (5)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX (6)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define BARKER_CORR_TH_ADD_MIN_IDX (7)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define BARKER_CORR_TH_ADD_MIN_MRC_IDX (8)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define AUTO_CORR40_X4_TH_ADD_MIN_IDX (9)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define PTAM_ENERGY_TH_IDX (10)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_GOOD_RANGE_FALSE_ALARM (0)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_TOO_MANY_FALSE_ALARM (1)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_TOO_FEW_FALSE_ALARM (2)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_SENSITIVITY_CONTROL_DEFAULT_TABLE (0)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#define IWK_SENSITIVITY_CONTROL_WORK_TABLE (1)
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct iwk_rx_sensitivity_cmd {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t control;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t table[11];
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing Chinastruct iwk_rx_sensitivity {
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t auto_corr_ofdm_x4;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t auto_corr_mrc_ofdm_x4;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t auto_corr_ofdm_x1;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t auto_corr_mrc_ofdm_x1;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t auto_corr_cck_x4;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t auto_corr_mrc_cck_x4;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t min_energy_det_cck;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint16_t flags;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t last_bad_plcp_cnt_ofdm;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t last_false_alarm_cnt_ofdm;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t last_bad_plcp_cnt_cck;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t last_false_alarm_cnt_cck;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t cck_curr_state;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t cck_prev_state;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t cck_beacon_min[10];
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t cck_beacon_idx;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint8_t cck_noise_max[20];
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t cck_noise_ref;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t cck_noise_idx;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China int32_t cck_noise_diff;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China uint32_t cck_no_false_alarm_num;
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China/* END Receiver sensitivity */
cdc64593cc1046229f4ac4daf5ead688b5efe6ebxinghua wen - Sun Microsystems - Beijing China#endif /* _IWK_CALIBRATION_H_ */