diff options
author | Ivo van Doorn <ivdoorn@gmail.com> | 2008-12-20 04:52:42 -0500 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-01-29 15:58:34 -0500 |
commit | 7d7f19ccb777946df0a8fb7c83189ba2ae08b02e (patch) | |
tree | 38fcea85510a4945283cf23bc029261b3941fc74 /drivers/net/wireless/rt2x00/rt2500usb.c | |
parent | 3ebbbb56a162b8f9b9a77bc7810b9d4e0868e039 (diff) |
rt2x00: Implement Powersaving
Listen to IEEE80211_CONF_PS to determine if the device
should drop into powersaving mode. This feature depends
on the dynamic power save functionality in mac80211.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2500usb.c')
-rw-r--r-- | drivers/net/wireless/rt2x00/rt2500usb.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index af6b5847be5c..23cf585f03a4 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c | |||
@@ -634,6 +634,32 @@ static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev, | |||
634 | rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg); | 634 | rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg); |
635 | } | 635 | } |
636 | 636 | ||
637 | static void rt2500usb_config_ps(struct rt2x00_dev *rt2x00dev, | ||
638 | struct rt2x00lib_conf *libconf) | ||
639 | { | ||
640 | enum dev_state state = | ||
641 | (libconf->conf->flags & IEEE80211_CONF_PS) ? | ||
642 | STATE_SLEEP : STATE_AWAKE; | ||
643 | u16 reg; | ||
644 | |||
645 | if (state == STATE_SLEEP) { | ||
646 | rt2500usb_register_read(rt2x00dev, MAC_CSR18, ®); | ||
647 | rt2x00_set_field16(®, MAC_CSR18_DELAY_AFTER_BEACON, | ||
648 | libconf->conf->beacon_int - 20); | ||
649 | rt2x00_set_field16(®, MAC_CSR18_BEACONS_BEFORE_WAKEUP, | ||
650 | libconf->conf->listen_interval - 1); | ||
651 | |||
652 | /* We must first disable autowake before it can be enabled */ | ||
653 | rt2x00_set_field16(®, MAC_CSR18_AUTO_WAKE, 0); | ||
654 | rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg); | ||
655 | |||
656 | rt2x00_set_field16(®, MAC_CSR18_AUTO_WAKE, 1); | ||
657 | rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg); | ||
658 | } | ||
659 | |||
660 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, state); | ||
661 | } | ||
662 | |||
637 | static void rt2500usb_config(struct rt2x00_dev *rt2x00dev, | 663 | static void rt2500usb_config(struct rt2x00_dev *rt2x00dev, |
638 | struct rt2x00lib_conf *libconf, | 664 | struct rt2x00lib_conf *libconf, |
639 | const unsigned int flags) | 665 | const unsigned int flags) |
@@ -647,6 +673,8 @@ static void rt2500usb_config(struct rt2x00_dev *rt2x00dev, | |||
647 | libconf->conf->power_level); | 673 | libconf->conf->power_level); |
648 | if (flags & IEEE80211_CONF_CHANGE_BEACON_INTERVAL) | 674 | if (flags & IEEE80211_CONF_CHANGE_BEACON_INTERVAL) |
649 | rt2500usb_config_duration(rt2x00dev, libconf); | 675 | rt2500usb_config_duration(rt2x00dev, libconf); |
676 | if (flags & IEEE80211_CONF_CHANGE_PS) | ||
677 | rt2500usb_config_ps(rt2x00dev, libconf); | ||
650 | } | 678 | } |
651 | 679 | ||
652 | /* | 680 | /* |