diff options
| author | Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com> | 2011-08-16 10:01:18 +0200 |
|---|---|---|
| committer | Philippe LANGLAIS <philippe.langlais@stericsson.com> | 2011-10-13 10:02:34 +0200 |
| commit | 57637b7f8a7b00798e6fa5eedcf7e1ef86ae8be6 (patch) | |
| tree | d995f3050985f7871c7528020f56dee0426e830c /drivers/staging/cw1200/txrx.c | |
| parent | 0957a526f0ed442372ea7d4da8f0651a07c52e25 (diff) | |
cw1200: Cancel suspend on late interrupts.
* Code added to detect late (after suspend) interrupts and cancel
suspend in that case. Applicable only for GPIO IRQs.
Similar modification is required in the MMC/SDIO driver to handle
late SDIO IRQs properly.
* Code added to hold wakelock for 1 sec. when frame is sent from
the driver up to userspace.
Change-Id: Ia739c243164a6d35602dc9f634d3990214560eb9
Signed-off-by: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/28850
Reviewed-by: Bartosz MARKOWSKI <bartosz.markowski@tieto.com>
Tested-by: Bartosz MARKOWSKI <bartosz.markowski@tieto.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/29061
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/33507
Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com>
Diffstat (limited to 'drivers/staging/cw1200/txrx.c')
| -rw-r--r-- | drivers/staging/cw1200/txrx.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/staging/cw1200/txrx.c b/drivers/staging/cw1200/txrx.c index 5201ffe65ab..18544011b16 100644 --- a/drivers/staging/cw1200/txrx.c +++ b/drivers/staging/cw1200/txrx.c @@ -719,6 +719,7 @@ void cw1200_rx_cb(struct cw1200_common *priv, { struct sk_buff *skb = *skb_p; struct ieee80211_rx_status *hdr = IEEE80211_SKB_RXCB(skb); + unsigned long grace_period; __le16 frame_control; hdr->flag = 0; @@ -825,6 +826,15 @@ void cw1200_rx_cb(struct cw1200_common *priv, if (cw1200_handle_action_rx(priv, skb)) return; + /* Stay awake for 1sec. after frame is received to give + * userspace chance to react and acquire appropriate + * wakelock. */ + if (ieee80211_is_auth(frame_control)) + grace_period = 5 * HZ; + else + grace_period = 1 * HZ; + cw1200_pm_stay_awake(&priv->pm_state, grace_period); + /* Not that we really need _irqsafe variant here, * but it offloads realtime bh thread and improve * system performance. */ |