From: Christian Lamparter <chunkeey@web.de>
To: wireless <linux-wireless@vger.kernel.org>
Cc: John W Linville <linville@tuxdriver.com>
Subject: [PATCH 3/3] p54: power save management
Date: Tue, 30 Dec 2008 13:48:41 +0100 [thread overview]
Message-ID: <200812301348.41201.chunkeey@web.de> (raw)
This patch implements dynamic power save feature for p54.
Signed-off-by: Christian Lamparter <chunkeey@web.de>
---
diff -Nurp a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
--- a/drivers/net/wireless/p54/p54common.c 2008-12-30 13:21:07.000000000 +0100
+++ b/drivers/net/wireless/p54/p54common.c 2008-12-30 13:29:59.000000000 +0100
@@ -1741,6 +1741,43 @@ static int p54_set_edcf(struct ieee80211
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)
{
/*
@@ -1933,6 +1970,11 @@ static int p54_config(struct ieee80211_h
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);
diff -Nurp a/drivers/net/wireless/p54/p54common.h b/drivers/net/wireless/p54/p54common.h
--- a/drivers/net/wireless/p54/p54common.h 2008-12-30 11:22:27.000000000 +0100
+++ b/drivers/net/wireless/p54/p54common.h 2008-12-30 13:22:05.000000000 +0100
@@ -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)
reply other threads:[~2008-12-30 12:50 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200812301348.41201.chunkeey@web.de \
--to=chunkeey@web.de \
--cc=linux-wireless@vger.kernel.org \
--cc=linville@tuxdriver.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.