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ath6kl: iw dev wlan0 link implementation

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implementing the cfg ops that gets called when iw dev wlan0
link is issued by user. The ops that needs to be implemented
is get_station.

kvalo: check the mac address, remove signal_pending(), use ARRAY_SIZE()
and fix style issues

Signed-off-by: Naveen Singh <nsingh@atheros.com>
Signed-off-by: Kalle Valo <kalle.valo@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Naveen Singh 2011-05-16 15:10:15 +03:00 committed by Greg Kroah-Hartman
parent d93089df1b
commit 10ceaac958
1 changed files with 146 additions and 0 deletions
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146
drivers/staging/ath6kl/os/linux/cfg80211.c
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@ -1461,6 +1461,151 @@ u32 cipher_suites[] = {
WLAN_CIPHER_SUITE_CCMP,
};
bool is_rate_legacy(s32 rate)
{
static const s32 legacy[] = { 1000, 2000, 5500, 11000,
6000, 9000, 12000, 18000, 24000,
36000, 48000, 54000 };
u8 i;
for (i = 0; i < ARRAY_SIZE(legacy); i++) {
if (rate == legacy[i])
return true;
}
return false;
}
bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
{
static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
52000, 58500, 65000, 72200 };
u8 i;
for (i = 0; i < ARRAY_SIZE(ht20); i++) {
if (rate == ht20[i]) {
if (i == ARRAY_SIZE(ht20) - 1)
/* last rate uses sgi */
*sgi = true;
else
*sgi = false;
*mcs = i;
return true;
}
}
return false;
}
bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
{
static const s32 ht40[] = { 13500, 27000, 40500, 54000,
81000, 108000, 121500, 135000,
150000 };
u8 i;
for (i = 0; i < ARRAY_SIZE(ht40); i++) {
if (rate == ht40[i]) {
if (i == ARRAY_SIZE(ht40) - 1)
/* last rate uses sgi */
*sgi = true;
else
*sgi = false;
*mcs = i;
return true;
}
}
return false;
}
static int ar6k_get_station(struct wiphy *wiphy, struct net_device *dev,
u8 *mac, struct station_info *sinfo)
{
struct ar6_softc *ar = ar6k_priv(dev);
long left;
bool sgi;
s32 rate;
int ret;
u8 mcs;
if (memcmp(mac, ar->arBssid, ETH_ALEN) != 0)
return -ENOENT;
if (down_interruptible(&ar->arSem))
return -EBUSY;
ar->statsUpdatePending = true;
ret = wmi_get_stats_cmd(ar->arWmi);
if (ret != 0) {
up(&ar->arSem);
return -EIO;
}
left = wait_event_interruptible_timeout(arEvent,
ar->statsUpdatePending == false,
wmitimeout * HZ);
up(&ar->arSem);
if (left == 0)
return -ETIMEDOUT;
else if (left < 0)
return left;
if (ar->arTargetStats.rx_bytes) {
sinfo->rx_bytes = ar->arTargetStats.rx_bytes;
sinfo->filled |= STATION_INFO_RX_BYTES;
sinfo->rx_packets = ar->arTargetStats.rx_packets;
sinfo->filled |= STATION_INFO_RX_PACKETS;
}
if (ar->arTargetStats.tx_bytes) {
sinfo->tx_bytes = ar->arTargetStats.tx_bytes;
sinfo->filled |= STATION_INFO_TX_BYTES;
sinfo->tx_packets = ar->arTargetStats.tx_packets;
sinfo->filled |= STATION_INFO_TX_PACKETS;
}
sinfo->signal = ar->arTargetStats.cs_rssi;
sinfo->filled |= STATION_INFO_SIGNAL;
rate = ar->arTargetStats.tx_unicast_rate;
if (is_rate_legacy(rate)) {
sinfo->txrate.legacy = rate / 100;
} else if (is_rate_ht20(rate, &mcs, &sgi)) {
if (sgi) {
sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
sinfo->txrate.mcs = mcs - 1;
} else {
sinfo->txrate.mcs = mcs;
}
sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
} else if (is_rate_ht40(rate, &mcs, &sgi)) {
if (sgi) {
sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
sinfo->txrate.mcs = mcs - 1;
} else {
sinfo->txrate.mcs = mcs;
}
sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
} else {
WARN(1, "invalid rate: %d", rate);
return 0;
}
sinfo->filled |= STATION_INFO_TX_BITRATE;
return 0;
}
static struct
cfg80211_ops ar6k_cfg80211_ops = {
.change_virtual_intf = ar6k_cfg80211_change_iface,
@ -1481,6 +1626,7 @@ cfg80211_ops ar6k_cfg80211_ops = {
.set_power_mgmt = ar6k_cfg80211_set_power_mgmt,
.join_ibss = ar6k_cfg80211_join_ibss,
.leave_ibss = ar6k_cfg80211_leave_ibss,
.get_station = ar6k_get_station,
};
struct wireless_dev *