#include "iwinfo.h"
#include "iwinfo_wext.h"
+#define LOG10_MAGIC 1.25892541179
+
static int ioctl_socket = -1;
static double wext_freq2float(const struct iw_freq *in)
return res;
}
+static int wext_freq2mhz(const struct iw_freq *in)
+{
+ int i, mhz;
+
+ if( in->e == 6 )
+ {
+ return in->m;
+ }
+ else
+ {
+ mhz = in->m;
+ for(i = 0; i < in->e; i++)
+ mhz *= 10;
+
+ return (int)(mhz / 100000);
+ }
+}
+
+static int wext_dbm2mw(int in)
+{
+ double res = 1.0;
+ int ip = in / 10;
+ int fp = in % 10;
+ int k;
+
+ for(k = 0; k < ip; k++) res *= 10;
+ for(k = 0; k < fp; k++) res *= LOG10_MAGIC;
+
+ return (int)res;
+}
+
+static int wext_mw2dbm(int in)
+{
+ double fin = (double) in;
+ int res = 0;
+
+ while(fin > 10.0)
+ {
+ res += 10;
+ fin /= 10.0;
+ }
+
+ while(fin > 1.000001)
+ {
+ res += 1;
+ fin /= LOG10_MAGIC;
+ }
+
+ return res;
+}
+
static int wext_ioctl(const char *ifname, int cmd, struct iwreq *wrq)
{
/* prepare socket */
if(wext_ioctl(ifname, SIOCGIWRATE, &wrq) >= 0)
{
- *buf = wrq.u.bitrate.value;
+ *buf = (wrq.u.bitrate.value / 1000);
return 0;
}
int wext_get_channel(const char *ifname, int *buf)
{
struct iwreq wrq;
+ struct iw_range range;
+ double freq;
+ int i;
if(wext_ioctl(ifname, SIOCGIWFREQ, &wrq) >= 0)
{
- /* FIXME: iwlib has some strange workarounds here, maybe we need them as well... */
- *buf = (int) wext_freq2float(&wrq.u.freq);
- return 0;
+ if( wrq.u.freq.m >= 1000 )
+ {
+ freq = wext_freq2float(&wrq.u.freq);
+ wrq.u.data.pointer = (caddr_t) ⦥
+ wrq.u.data.length = sizeof(struct iw_range);
+ wrq.u.data.flags = 0;
+
+ if(wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0)
+ {
+ for(i = 0; i < range.num_frequency; i++)
+ {
+ if( wext_freq2float(&range.freq[i]) == freq )
+ {
+ *buf = range.freq[i].i;
+ return 0;
+ }
+ }
+ }
+ }
+ else
+ {
+ *buf = wrq.u.freq.m;
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
+int wext_get_frequency(const char *ifname, int *buf)
+{
+ struct iwreq wrq;
+ struct iw_range range;
+ int i, channel;
+
+ if(wext_ioctl(ifname, SIOCGIWFREQ, &wrq) >= 0)
+ {
+ /* We got a channel number instead ... */
+ if( wrq.u.freq.m < 1000 )
+ {
+ channel = wrq.u.freq.m;
+ wrq.u.data.pointer = (caddr_t) ⦥
+ wrq.u.data.length = sizeof(struct iw_range);
+ wrq.u.data.flags = 0;
+
+ if(wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0)
+ {
+ for(i = 0; i < range.num_frequency; i++)
+ {
+ if( range.freq[i].i == channel )
+ {
+ *buf = wext_freq2mhz(&range.freq[i]);
+ return 0;
+ }
+ }
+ }
+ }
+ else
+ {
+ *buf = wext_freq2mhz(&wrq.u.freq);
+ return 0;
+ }
}
return -1;
return -1;
}
+int wext_get_txpwrlist(const char *ifname, char *buf, int *len)
+{
+ struct iwreq wrq;
+ struct iw_range range;
+ struct iwinfo_txpwrlist_entry entry;
+ int i;
+
+ wrq.u.data.pointer = (caddr_t) ⦥
+ wrq.u.data.length = sizeof(struct iw_range);
+ wrq.u.data.flags = 0;
+
+ if( (wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0) &&
+ (range.num_txpower > 0) && (range.num_txpower <= IW_MAX_TXPOWER) &&
+ !(range.txpower_capa & IW_TXPOW_RELATIVE)
+ ) {
+ for( i = 0; i < range.num_txpower; i++ )
+ {
+ if( range.txpower_capa & IW_TXPOW_DBM )
+ {
+ entry.dbm = range.txpower[i];
+ entry.mw = wext_dbm2mw(range.txpower[i]);
+ }
+
+ else if( range.txpower_capa & IW_TXPOW_MWATT )
+ {
+ entry.dbm = wext_mw2dbm(range.txpower[i]);
+ entry.mw = range.txpower[i];
+ }
+
+ memcpy(&buf[i*sizeof(entry)], &entry, sizeof(entry));
+ }
+
+ *len = i * sizeof(entry);
+ return 0;
+ }
+
+ return -1;
+}
+
+int wext_get_freqlist(const char *ifname, char *buf, int *len)
+{
+ struct iwreq wrq;
+ struct iw_range range;
+ struct iwinfo_freqlist_entry entry;
+ int i, bl;
+
+ wrq.u.data.pointer = (caddr_t) ⦥
+ wrq.u.data.length = sizeof(struct iw_range);
+ wrq.u.data.flags = 0;
+
+ if(wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0)
+ {
+ bl = 0;
+
+ for(i = 0; i < range.num_frequency; i++)
+ {
+ entry.mhz = wext_freq2mhz(&range.freq[i]);
+ entry.channel = range.freq[i].i;
+
+ memcpy(&buf[bl], &entry, sizeof(struct iwinfo_freqlist_entry));
+ bl += sizeof(struct iwinfo_freqlist_entry);
+ }
+
+ *len = bl;
+ return 0;
+ }
+
+ return -1;
+}
+
+int wext_get_mbssid_support(const char *ifname, int *buf)
+{
+ /* No multi bssid support atm */
+ return -1;
+}
+