diff options
| author | Amitkumar Karwar <akarwar@marvell.com> | 2013-06-19 03:36:58 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-06-19 23:28:43 +0400 |
| commit | b887664d882ee4f6a67e0bf05e5f141d32fcc067 (patch) | |
| tree | 743c252756bcdfc8d129a594ee52a99085d42477 /drivers/net/wireless/mwifiex/main.h | |
| parent | 2a7305c88d245f104c3d6bd3babafb029fd07477 (diff) | |
| download | linux-b887664d882ee4f6a67e0bf05e5f141d32fcc067.tar.xz | |
mwifiex: channel switch handling for station
After receiving channel switch announcement from AP, scan and
association on that channel is blocked for DFS_CHAN_MOVE_TIME
(10 seconds). Hence station will be able to connect to the AP,
once it is moved to new channel.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mwifiex/main.h')
| -rw-r--r-- | drivers/net/wireless/mwifiex/main.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index 95a6f5269c6c..3da73d36acdf 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -513,6 +513,8 @@ struct mwifiex_private { u32 mgmt_frame_mask; struct mwifiex_roc_cfg roc_cfg; bool scan_aborting; + u8 csa_chan; + unsigned long csa_expire_time; }; enum mwifiex_ba_status { @@ -1021,6 +1023,24 @@ static inline bool mwifiex_is_skb_mgmt_frame(struct sk_buff *skb) return (*(u32 *)skb->data == PKT_TYPE_MGMT); } +/* This function retrieves channel closed for operation by Channel + * Switch Announcement. + */ +static inline u8 +mwifiex_11h_get_csa_closed_channel(struct mwifiex_private *priv) +{ + if (!priv->csa_chan) + return 0; + + /* Clear csa channel, if DFS channel move time has passed */ + if (jiffies > priv->csa_expire_time) { + priv->csa_chan = 0; + priv->csa_expire_time = 0; + } + + return priv->csa_chan; +} + int mwifiex_init_shutdown_fw(struct mwifiex_private *priv, u32 func_init_shutdown); int mwifiex_add_card(void *, struct semaphore *, struct mwifiex_if_ops *, u8); |