diff options
author | Jussi Kivilinna <jussi.kivilinna@mbnet.fi> | 2011-01-31 21:49:43 +0300 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2011-02-05 00:29:50 +0300 |
commit | 212e1a5b9df0a51d54d7841467f3f01baa1b82f1 (patch) | |
tree | 7e001a521f613ded27315bdf280e26967ac1abbc /drivers/net/wireless/zd1211rw | |
parent | 8f2d8f869af5088d4e4866c8286f0599e83cc963 (diff) | |
download | linux-212e1a5b9df0a51d54d7841467f3f01baa1b82f1.tar.xz |
zd1211rw: collect driver settings and add function to restore theim
We need HW hard reset later in patchset to reset device after TX-stall.
Collect all settings that we have set to driver for later reset and
add restore function.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/zd1211rw')
-rw-r--r-- | drivers/net/wireless/zd1211rw/zd_mac.c | 69 | ||||
-rw-r--r-- | drivers/net/wireless/zd1211rw/zd_mac.h | 3 |
2 files changed, 72 insertions, 0 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index 84ee1b886912..e82f0075ed93 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -141,6 +141,9 @@ static void housekeeping_disable(struct zd_mac *mac); static void beacon_init(struct zd_mac *mac); static void beacon_enable(struct zd_mac *mac); static void beacon_disable(struct zd_mac *mac); +static void set_rts_cts(struct zd_mac *mac, unsigned int short_preamble); +static int zd_mac_config_beacon(struct ieee80211_hw *hw, + struct sk_buff *beacon); static int zd_reg2alpha2(u8 regdomain, char *alpha2) { @@ -339,6 +342,68 @@ static void zd_op_stop(struct ieee80211_hw *hw) dev_kfree_skb_any(skb); } +int zd_restore_settings(struct zd_mac *mac) +{ + struct sk_buff *beacon; + struct zd_mc_hash multicast_hash; + unsigned int short_preamble; + int r, beacon_interval, beacon_period; + u8 channel; + + dev_dbg_f(zd_mac_dev(mac), "\n"); + + spin_lock_irq(&mac->lock); + multicast_hash = mac->multicast_hash; + short_preamble = mac->short_preamble; + beacon_interval = mac->beacon.interval; + beacon_period = mac->beacon.period; + channel = mac->channel; + spin_unlock_irq(&mac->lock); + + r = set_mac_and_bssid(mac); + if (r < 0) { + dev_dbg_f(zd_mac_dev(mac), "set_mac_and_bssid failed, %d\n", r); + return r; + } + + r = zd_chip_set_channel(&mac->chip, channel); + if (r < 0) { + dev_dbg_f(zd_mac_dev(mac), "zd_chip_set_channel failed, %d\n", + r); + return r; + } + + set_rts_cts(mac, short_preamble); + + r = zd_chip_set_multicast_hash(&mac->chip, &multicast_hash); + if (r < 0) { + dev_dbg_f(zd_mac_dev(mac), + "zd_chip_set_multicast_hash failed, %d\n", r); + return r; + } + + if (mac->type == NL80211_IFTYPE_MESH_POINT || + mac->type == NL80211_IFTYPE_ADHOC || + mac->type == NL80211_IFTYPE_AP) { + if (mac->vif != NULL) { + beacon = ieee80211_beacon_get(mac->hw, mac->vif); + if (beacon) { + zd_mac_config_beacon(mac->hw, beacon); + kfree_skb(beacon); + } + } + + zd_set_beacon_interval(&mac->chip, beacon_interval, + beacon_period, mac->type); + + spin_lock_irq(&mac->lock); + mac->beacon.last_update = jiffies; + spin_unlock_irq(&mac->lock); + } + + return 0; +} + /** * zd_mac_tx_status - reports tx status of a packet if required * @hw - a &struct ieee80211_hw pointer @@ -988,6 +1053,10 @@ static int zd_op_config(struct ieee80211_hw *hw, u32 changed) struct zd_mac *mac = zd_hw_mac(hw); struct ieee80211_conf *conf = &hw->conf; + spin_lock_irq(&mac->lock); + mac->channel = conf->channel->hw_value; + spin_unlock_irq(&mac->lock); + return zd_chip_set_channel(&mac->chip, conf->channel->hw_value); } diff --git a/drivers/net/wireless/zd1211rw/zd_mac.h b/drivers/net/wireless/zd1211rw/zd_mac.h index 281b3079311a..c0f239e40bcd 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.h +++ b/drivers/net/wireless/zd1211rw/zd_mac.h @@ -192,6 +192,7 @@ struct zd_mac { u8 intr_buffer[USB_MAX_EP_INT_BUFFER]; u8 regdomain; u8 default_regdomain; + u8 channel; int type; int associated; unsigned long flags; @@ -313,6 +314,8 @@ int zd_mac_rx(struct ieee80211_hw *hw, const u8 *buffer, unsigned int length); void zd_mac_tx_failed(struct urb *urb); void zd_mac_tx_to_dev(struct sk_buff *skb, int error); +int zd_restore_settings(struct zd_mac *mac); + #ifdef DEBUG void zd_dump_rx_status(const struct rx_status *status); #else |