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[PATCH] bcm43xx: split the channel helper functions, so that they can be used without a valid running core. 

Signed-off-by: Michael Buesch <mbuesch@freenet.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Buesch 2006-02-19 22:08:48 +01:00 committed by John W. Linville
parent ad3f086c49
commit 10d8dd88dc
3 changed files with 60 additions and 38 deletions
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4
drivers/net/wireless/bcm43xx/bcm43xx_main.c
View File

@ -1169,7 +1169,7 @@ static void bcm43xx_geo_init(struct bcm43xx_private *bcm)
if (have_a) {
for (i = 0, channel = 0; channel < 201; channel++) {
chan = &geo.a[i++];
chan->freq = bcm43xx_channel_to_freq(bcm, channel);
chan->freq = bcm43xx_channel_to_freq_a(channel);
chan->channel = channel;
}
geo.a_channels = i;
@ -1177,7 +1177,7 @@ static void bcm43xx_geo_init(struct bcm43xx_private *bcm)
if (have_bg) {
for (i = 0, channel = 1; channel < 15; channel++) {
chan = &geo.bg[i++];
chan->freq = bcm43xx_channel_to_freq(bcm, channel);
chan->freq = bcm43xx_channel_to_freq_bg(channel);
chan->channel = channel;
}
geo.bg_channels = i;

82
drivers/net/wireless/bcm43xx/bcm43xx_main.h
View File

@ -187,58 +187,78 @@ struct bcm43xx_xmitstatus_queue {
/* Lightweight function to convert a frequency (in Mhz) to a channel number. */
static inline
u8 bcm43xx_freq_to_channel(struct bcm43xx_private *bcm,
int freq)
u8 bcm43xx_freq_to_channel_a(int freq)
{
return ((freq - 5000) / 5);
}
static inline
u8 bcm43xx_freq_to_channel_bg(int freq)
{
u8 channel;
if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) {
channel = (freq - 5000) / 5;
} else {
if (freq == 2484)
channel = 14;
else
channel = (freq - 2407) / 5;
}
if (freq == 2484)
channel = 14;
else
channel = (freq - 2407) / 5;
return channel;
}
static inline
u8 bcm43xx_freq_to_channel(struct bcm43xx_private *bcm,
int freq)
{
if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A)
return bcm43xx_freq_to_channel_a(freq);
return bcm43xx_freq_to_channel_bg(freq);
}
/* Lightweight function to convert a channel number to a frequency (in Mhz). */
static inline
int bcm43xx_channel_to_freq(struct bcm43xx_private *bcm,
u8 channel)
int bcm43xx_channel_to_freq_a(u8 channel)
{
return (5000 + (5 * channel));
}
static inline
int bcm43xx_channel_to_freq_bg(u8 channel)
{
int freq;
if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) {
freq = 5000 + (5 * channel);
} else {
if (channel == 14)
freq = 2484;
else
freq = 2407 + (5 * channel);
}
if (channel == 14)
freq = 2484;
else
freq = 2407 + (5 * channel);
return freq;
}
static inline
int bcm43xx_channel_to_freq(struct bcm43xx_private *bcm,
u8 channel)
{
if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A)
return bcm43xx_channel_to_freq_a(channel);
return bcm43xx_channel_to_freq_bg(channel);
}
/* Lightweight function to check if a channel number is valid.
* Note that this does _NOT_ check for geographical restrictions!
*/
static inline
int bcm43xx_is_valid_channel(struct bcm43xx_private *bcm,
u8 channel)
int bcm43xx_is_valid_channel_a(u8 channel)
{
if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) {
if (channel <= 200)
return 1;
} else {
if (channel >= 1 && channel <= 14)
return 1;
}
return 0;
return (channel <= 200);
}
static inline
int bcm43xx_is_valid_channel_bg(u8 channel)
{
return (channel >= 1 && channel <= 14);
}
static inline
int bcm43xx_is_valid_channel(struct bcm43xx_private *bcm,
u8 channel)
{
if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A)
return bcm43xx_is_valid_channel_a(channel);
return bcm43xx_is_valid_channel_bg(channel);
}
void bcm43xx_tsf_read(struct bcm43xx_private *bcm, u64 *tsf);

12
drivers/net/wireless/bcm43xx/bcm43xx_wx.c
View File

@ -111,8 +111,9 @@ static int bcm43xx_wx_set_channelfreq(struct net_device *net_dev,
unsigned long flags;
u8 channel;
int freq;
int err = 0;
int err = -EINVAL;
spin_lock_irqsave(&bcm->lock, flags);
if ((data->freq.m >= 0) && (data->freq.m <= 1000)) {
channel = data->freq.m;
freq = bcm43xx_channel_to_freq(bcm, channel);
@ -121,16 +122,17 @@ static int bcm43xx_wx_set_channelfreq(struct net_device *net_dev,
freq = data->freq.m;
}
if (!bcm43xx_is_valid_channel(bcm, channel))
return -EINVAL;
spin_lock_irqsave(&bcm->lock, flags);
goto out_unlock;
if (bcm->initialized) {
//ieee80211softmac_disassoc(softmac, $REASON);
bcm43xx_mac_suspend(bcm);
err = bcm43xx_radio_selectchannel(bcm, channel, 0);
bcm43xx_mac_enable(bcm);
} else
} else {
bcm->current_core->radio->initial_channel = channel;
err = 0;
}
out_unlock:
spin_unlock_irqrestore(&bcm->lock, flags);
return err;