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Commit dd551ab7 authored by Wey-Yi Guy's avatar Wey-Yi Guy Committed by John W. Linville
Browse files

iwlwifi: include rssi as part of decision making for reduce txpower 



In bt coex, consider the average rssi as part of decision making process

Change-Id: I8d11d7f177a6875e2a9d08f7539d42253226fd7a
Signed-off-by: default avatarWey-Yi Guy <wey-yi.w.guy@intel.com>
Reviewed-on: http://git-mwg.jer.intel.com/gerrit/1945


Tested-by: Jenkins
Reviewed-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent f3a138c1

drivers/net/wireless/iwlwifi/iwl-agn-lib.c

+11 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
#include <linux/module.h>

#include <linux/init.h>

#include <linux/sched.h>

#include <net/mac80211.h>



#include "iwl-dev.h"

#include "iwl-io.h"
@@ -593,9 +594,18 @@ static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv, 
				struct iwl_bt_uart_msg *uart_msg)

{

	bool need_update = false;

	struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];

	int ave_rssi;



	ave_rssi = ieee80211_ave_rssi(ctx->vif);

	if (!ave_rssi) {

		/* no rssi data, no changes to reduce tx power */

		IWL_DEBUG_COEX(priv, "no rssi data available\n");

		return need_update;

	}

	if (!priv->reduced_txpower &&

	    !iwl_is_associated(priv, IWL_RXON_CTX_PAN) &&

	    (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) &&

	    (uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |

	    BT_UART_MSG_FRAME3OBEX_MSK)) &&

	    !(uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |
@@ -606,6 +616,7 @@ static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv, 
		need_update = true;

	} else if (priv->reduced_txpower &&

		   (iwl_is_associated(priv, IWL_RXON_CTX_PAN) ||

		   (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) ||

		   (uart_msg->frame3 & (BT_UART_MSG_FRAME3SCOESCO_MSK |

		   BT_UART_MSG_FRAME3SNIFF_MSK | BT_UART_MSG_FRAME3A2DP_MSK)) ||

		   !(uart_msg->frame3 & (BT_UART_MSG_FRAME3ACL_MSK |