From d632f9fa38203ad5bac31e46921812216693b14f Mon Sep 17 00:00:00 2001 From: Joerg Sommer Date: Fri, 2 Mar 2007 12:32:06 -0600 Subject: [PATCH] bcm43xx: Fix bug in frequency to channel conversion The frequency to channel routine in bcm43xx requires that the frequency be in MHz, but that condition is not always met. This patch does the necessary conversion. Signed-off-by: Joerg Sommer Signed-off-by: Larry Finger Signed-off-by: John W. Linville --- drivers/net/wireless/bcm43xx/bcm43xx_wx.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_wx.c b/drivers/net/wireless/bcm43xx/bcm43xx_wx.c index 7b665e2386a8..d6d9413d7f23 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_wx.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_wx.c @@ -105,18 +105,24 @@ static int bcm43xx_wx_set_channelfreq(struct net_device *net_dev, struct bcm43xx_private *bcm = bcm43xx_priv(net_dev); unsigned long flags; u8 channel; + s8 expon; int freq; int err = -EINVAL; mutex_lock(&bcm->mutex); spin_lock_irqsave(&bcm->irq_lock, flags); - if ((data->freq.m >= 0) && (data->freq.m <= 1000)) { + if ((data->freq.e == 0) && + (data->freq.m >= 0) && (data->freq.m <= 1000)) { channel = data->freq.m; freq = bcm43xx_channel_to_freq(bcm, channel); } else { - channel = bcm43xx_freq_to_channel(bcm, data->freq.m); freq = data->freq.m; + expon = 6 - data->freq.e; + while (--expon >= 0) /* scale down the frequency to MHz */ + freq /= 10; + assert(freq > 1000); + channel = bcm43xx_freq_to_channel(bcm, freq); } if (!ieee80211_is_valid_channel(bcm->ieee, channel)) goto out_unlock; -- cgit v1.2.2