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b43: Rewrite TX power adjustment

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This patch rewrites the TX power recalculation algorithms to scale better
with changed enviromnent. If there's low
TX traffic, the power will be checked against the desired values
every 60 seconds.
If there is high TX traffic, the check is redone every 2 seconds. This improves
the reaction times a lot and confuses the rate control less.
It will also reduce the time it initially takes to tune to a new TX power
value. With the old algorithm it could take about 30 to 45 seconds to settle to
a new power value. This will happen in about two to four seconds now.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Buesch
2008-08-28 19:33:40 +02:00
committed by John W. Linville
parent ef1a628d83
commit 18c8adeb02
9 changed files with 341 additions and 121 deletions
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11
drivers/net/wireless/b43/phy_a.c
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@@ -505,10 +505,16 @@ static void b43_aphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
b43_hf_write(dev, hf);
}
static void b43_aphy_op_xmitpower(struct b43_wldev *dev)
static void b43_aphy_op_adjust_txpower(struct b43_wldev *dev)
{//TODO
}
static enum b43_txpwr_result b43_aphy_op_recalc_txpower(struct b43_wldev *dev,
bool ignore_tssi)
{//TODO
return B43_TXPWR_RES_DONE;
}
static void b43_aphy_op_pwork_15sec(struct b43_wldev *dev)
{//TODO
}
@@ -530,7 +536,8 @@ const struct b43_phy_operations b43_phyops_a = {
.switch_channel = b43_aphy_op_switch_channel,
.get_default_chan = b43_aphy_op_get_default_chan,
.set_rx_antenna = b43_aphy_op_set_rx_antenna,
.xmitpower = b43_aphy_op_xmitpower,
.recalc_txpower = b43_aphy_op_recalc_txpower,
.adjust_txpower = b43_aphy_op_adjust_txpower,
.pwork_15sec = b43_aphy_op_pwork_15sec,
.pwork_60sec = b43_aphy_op_pwork_60sec,
};