diff options
| author | Christian Lamparter <chunkeey@web.de> | 2008-12-30 15:48:41 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-01-29 23:59:44 +0300 |
| commit | 2b8d4e2eea711b6dfe1878ff3c94ebe757656f6d (patch) | |
| tree | f4cbc2ded9070edfdda55ff30d83cab9e3ca898d /drivers/net/wireless/p54/p54common.c | |
| parent | 51eed9923d98477e7f7473edd60d876d1cecc8c5 (diff) | |
| download | linux-2b8d4e2eea711b6dfe1878ff3c94ebe757656f6d.tar.xz | |
p54: power save management
This patch implements dynamic power save feature for p54.
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/p54/p54common.c')
| -rw-r--r-- | drivers/net/wireless/p54/p54common.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c index d85a6bafd79f..6c175df48b0d 100644 --- a/drivers/net/wireless/p54/p54common.c +++ b/drivers/net/wireless/p54/p54common.c @@ -1765,6 +1765,43 @@ static int p54_set_edcf(struct ieee80211_hw *dev) return 0; } +static int p54_set_ps(struct ieee80211_hw *dev) +{ + struct p54_common *priv = dev->priv; + struct sk_buff *skb; + struct p54_psm *psm; + u16 mode; + int i; + + if (dev->conf.flags & IEEE80211_CONF_PS) + mode = cpu_to_le16(P54_PSM | P54_PSM_DTIM | P54_PSM_MCBC); + else + mode = P54_PSM_CAM; + + skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*psm) + + sizeof(struct p54_hdr), P54_CONTROL_TYPE_PSM, + GFP_ATOMIC); + if (!skb) + return -ENOMEM; + + psm = (struct p54_psm *)skb_put(skb, sizeof(*psm)); + psm->mode = cpu_to_le16(mode); + psm->aid = cpu_to_le16(priv->aid); + for (i = 0; i < ARRAY_SIZE(psm->intervals); i++) { + psm->intervals[i].interval = + cpu_to_le16(dev->conf.listen_interval); + psm->intervals[i].periods = 1; + } + + psm->beacon_rssi_skip_max = 60; + psm->rssi_delta_threshold = 0; + psm->nr = 0; + + priv->tx(dev, skb); + + return 0; +} + static int p54_beacon_tim(struct sk_buff *skb) { /* @@ -1957,6 +1994,11 @@ static int p54_config(struct ieee80211_hw *dev, u32 changed) if (ret) goto out; } + if (changed & IEEE80211_CONF_CHANGE_PS) { + ret = p54_set_ps(dev); + if (ret) + goto out; + } out: mutex_unlock(&priv->conf_mutex); |