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104 lines
4.3 KiB
Text
104 lines
4.3 KiB
Text
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===============================================================================
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U S E R M A N U A L for Robust BT-WLAN coex (RBC)
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Copyright (C) 2014-2019, Marvell International Ltd.
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All Rights Reserved
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===============================================================================
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###############################
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# Abbreviations and acronyms
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###############################
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RBC - Robust BT-WLAN co-existence
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TMD - Time Distribute
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SMPS - Spatial Multiplexing Power Save
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###############################
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# Default RBC modes:
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###############################
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1. For systems where BT and WLAN have seperate antennas, RBC mode is
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automatically disabled in FW after detecting this from FEM cal data. e.g.
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For 1x1 Dual-Ant system and 2x2 3-Ant system RBC mode is disabled.
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2. For systems where BT and WLAN share an antenna, RBC mode is automatically
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enabled in FW after detecting this from FEM cal data.
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Default modes:
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1x1 single antenna system: TMD RBC
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2x2 2-antenna system: 1x1 SMPS RBC
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#################################
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# 2x2 2-antenna system RBC modes
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#################################
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There are three mutually exclusive RBC modes for a 2x2 system.
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The default RBC mode is 1x1 SMPS RBC. The required RBC mode must be
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configured before starting uAP or associating in-STA. The mode cannot be
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changed dynamically when any of these connections is active. The modes are
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described below:
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1. 1x1 SMPS RBC mode: WLAN switches to 1x1 FEM when BT is turned on. Also,
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in-STA goes to SMPS mode w.r.t. ext-AP. When BT is turned off, WLAN
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switches back to 2x2 FEM setting and in-STA moves out of SMPS.
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uAP starts bss with only 1-stream even BT is off because it cannot
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dynamically move between 1-stream and 2-stream rates like in-STA. To start
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uAP with 2-stream, RBC mode has to be disabled.
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2. 1x2 SMPS RBC mode: Similar as 1x1 SMPS RBC mode. WLAN switches to 1x2 FEM
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when BT is turned on. In this mode, it is expected that when BT is not
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actively transmitting, WLAN can receive on both the antennas to enhance
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the range. Note that 1-stream rates are used for receive and transmit.
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3. 2x2 TMD RBC mode: WLAN uses 2x2 antenna setting and timeshares the antenna
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with BT.
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###############################
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# RBC mode select:
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###############################
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User can use robust_btc.conf and hostcmd to select different RBC mode:
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hostcmd mode_get
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hostcmd mode_timeshare
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hostcmd mode_spatial
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This command is used to get/set Robust BT Coex.
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mode_get: get the current mode
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mode_timeshare: set Robust BT Coex to timeshare mode (default on 1x1 chips)
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mode_spatial: set Robust BT Coex to spatial mode (only for, and default on 2x2 chips)
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Usage:
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mlanconfig mlanX hostcmd config/robust_btc.conf mode_get
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mlanconfig mlanX hostcmd config/robust_btc.conf mode_timeshare
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mlanconfig mlanX hostcmd config/robust_btc.conf mode_spatial
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hostcmd gpio_cfg
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This command is used to enable/disable GPIO cfg.
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gpio_cfg: enable/disable GPIO cfg for external bt request (default is enable with High Polarity)
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Usage:
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mlanconfig mlanX hostcmd config/robust_btc.conf gpio_cfg
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hostcmd generictime
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hostcmd a2dptime
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hostcmd inquirytime
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hostcmd ap_generictime
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hostcmd ap_a2dptime
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hostcmd ap_inquirytime
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This command is used to configure the time slice of COEX (only works in timeshare mode)
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generictime: configure the Bttime and Wlantime in Station Generic case
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a2dptime: configure the Bttime and Wlantime in Station A2DP case
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inquirytime: configure the Bttime and Wlantime in Station Inquiry case
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ap_generictime: configure the Bttime and Wlantime in Ap Generic case
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ap_a2dptime: configure the Bttime and Wlantime in Ap A2DP case
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ap_inquirytime: configure the Bttime and Wlantime in Ap Inquiry case
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Usage:
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mlanutl mlanX hostcmd config/robust_btc.conf generictime
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mlanutl mlanX hostcmd config/robust_btc.conf a2dptime
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mlanutl mlanX hostcmd config/robust_btc.conf inquirytim
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mlanutl mlanX hostcmd config/robust_btc.conf ap_generictime
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mlanutl mlanX hostcmd config/robust_btc.conf ap_a2dptime
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mlanutl mlanX hostcmd config/robust_btc.conf ap_inquirytime
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