diff options
| author | David Kilroy <kilroyd@googlemail.com> | 2008-12-23 14:03:38 +0000 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-01-29 15:58:46 -0500 |
| commit | 9ee677c2276bfcbcf68042ec2718a504af0c5fd7 (patch) | |
| tree | 0b5528241690e143c60832d319ddbb2ad1c5d7f1 /drivers/net/wireless/orinoco | |
| parent | eaee7cc2c180c291084a1c1f49cd2bf13002b3e1 (diff) | |
wireless: Add channel/frequency conversions to ieee80211.h
Added mappings for FHSS, DSSS and OFDM channels - with macros to point
HR DSSS and ERP to the DSSS mappings. Currently just static inline
functions.
Use the new functions in the older fullmac drivers. This eliminates a
number of const static buffers and removes a couple of range checks that
are now redundant.
Signed-off-by: David Kilroy <kilroyd@googlemail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Richard Farina <sidhayn@gmail.com>
Acked-by: Jeroen Vreeken <pe1rxq@amsat.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/orinoco')
| -rw-r--r-- | drivers/net/wireless/orinoco/orinoco.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/drivers/net/wireless/orinoco/orinoco.c b/drivers/net/wireless/orinoco/orinoco.c index 45a04faa781..beb4d1f8c18 100644 --- a/drivers/net/wireless/orinoco/orinoco.c +++ b/drivers/net/wireless/orinoco/orinoco.c @@ -178,12 +178,7 @@ static const struct ethtool_ops orinoco_ethtool_ops; /* Data tables */ /********************************************************************/ -/* The frequency of each channel in MHz */ -static const long channel_frequency[] = { - 2412, 2417, 2422, 2427, 2432, 2437, 2442, - 2447, 2452, 2457, 2462, 2467, 2472, 2484 -}; -#define NUM_CHANNELS ARRAY_SIZE(channel_frequency) +#define NUM_CHANNELS 14 /* This tables gives the actual meanings of the bitrate IDs returned * by the firmware. */ @@ -3742,13 +3737,13 @@ static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active, return err; } -static long orinoco_hw_get_freq(struct orinoco_private *priv) +static int orinoco_hw_get_freq(struct orinoco_private *priv) { hermes_t *hw = &priv->hw; int err = 0; u16 channel; - long freq = 0; + int freq = 0; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) @@ -3771,7 +3766,7 @@ static long orinoco_hw_get_freq(struct orinoco_private *priv) goto out; } - freq = channel_frequency[channel-1] * 100000; + freq = ieee80211_dsss_chan_to_freq(channel); out: orinoco_unlock(priv, &flags); @@ -3998,7 +3993,8 @@ static int orinoco_ioctl_getiwrange(struct net_device *dev, for (i = 0; i < NUM_CHANNELS; i++) { if (priv->channel_mask & (1 << i)) { range->freq[k].i = i + 1; - range->freq[k].m = channel_frequency[i] * 100000; + range->freq[k].m = (ieee80211_dsss_chan_to_freq(i + 1) * + 100000); range->freq[k].e = 1; k++; } @@ -4346,16 +4342,15 @@ static int orinoco_ioctl_setfreq(struct net_device *dev, /* Setting by channel number */ chan = frq->m; } else { - /* Setting by frequency - search the table */ - int mult = 1; + /* Setting by frequency */ + int denom = 1; int i; + /* Calculate denominator to rescale to MHz */ for (i = 0; i < (6 - frq->e); i++) - mult *= 10; + denom *= 10; - for (i = 0; i < NUM_CHANNELS; i++) - if (frq->m == (channel_frequency[i] * mult)) - chan = i+1; + chan = ieee80211_freq_to_dsss_chan(frq->m / denom); } if ( (chan < 1) || (chan > NUM_CHANNELS) || @@ -4392,7 +4387,7 @@ static int orinoco_ioctl_getfreq(struct net_device *dev, return tmp; } - frq->m = tmp; + frq->m = tmp * 100000; frq->e = 1; return 0; @@ -5609,7 +5604,7 @@ static inline char *orinoco_translate_scan(struct net_device *dev, current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_FREQ_LEN); - iwe.u.freq.m = channel_frequency[channel-1] * 100000; + iwe.u.freq.m = ieee80211_dsss_chan_to_freq(channel) * 100000; iwe.u.freq.e = 1; current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_FREQ_LEN); @@ -5760,7 +5755,7 @@ static inline char *orinoco_translate_ext_scan(struct net_device *dev, current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_FREQ_LEN); - iwe.u.freq.m = channel_frequency[channel-1] * 100000; + iwe.u.freq.m = ieee80211_dsss_chan_to_freq(channel) * 100000; iwe.u.freq.e = 1; current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_FREQ_LEN); |