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Commit 2b8d4e2e authored by Christian Lamparter's avatar Christian Lamparter Committed by John W. Linville
Browse files

p54: power save management 



This patch implements dynamic power save feature for p54.

Signed-off-by: default avatarChristian Lamparter <chunkeey@web.de>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 51eed992

drivers/net/wireless/p54/p54common.c

+42 −0
Original line number Diff line number Diff line
@@ -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);

drivers/net/wireless/p54/p54common.h

+1 −0
Original line number Diff line number Diff line
@@ -534,6 +534,7 @@ struct p54_psm_interval { 
	__le16 periods;

} __attribute__ ((packed));



#define P54_PSM_CAM			0

#define P54_PSM				BIT(0)

#define P54_PSM_DTIM			BIT(1)

#define P54_PSM_MCBC			BIT(2)