diff options
| author | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2010-11-10 09:56:41 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-15 13:26:47 -0500 |
| commit | 708068db4c09f93937a6a83ac8fff8516f482b0f (patch) | |
| tree | ad304f921b1ed43063bdc3d3d3416f49cd8b5a01 /drivers/net/wireless/iwlwifi/iwl-legacy.c | |
| parent | e39fdee1d7856817619326fa114438c146d74510 (diff) | |
iwlwifi: legacy tx_cmd_protection function
Legacy (4965 and 3945) devices has different tx_cmd_protection routine.
Move to iwl-legacy.c
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-legacy.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-legacy.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-legacy.c b/drivers/net/wireless/iwlwifi/iwl-legacy.c index f49e500cba6..10d9c420287 100644 --- a/drivers/net/wireless/iwlwifi/iwl-legacy.c +++ b/drivers/net/wireless/iwlwifi/iwl-legacy.c @@ -620,3 +620,37 @@ none: return IRQ_NONE; } EXPORT_SYMBOL(iwl_isr_legacy); + +/* + * iwl_legacy_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this + * function. + */ +void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv, + struct ieee80211_tx_info *info, + __le16 fc, __le32 *tx_flags) +{ + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { + *tx_flags |= TX_CMD_FLG_RTS_MSK; + *tx_flags &= ~TX_CMD_FLG_CTS_MSK; + *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; + + if (!ieee80211_is_mgmt(fc)) + return; + + switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { + case cpu_to_le16(IEEE80211_STYPE_AUTH): + case cpu_to_le16(IEEE80211_STYPE_DEAUTH): + case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ): + case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ): + *tx_flags &= ~TX_CMD_FLG_RTS_MSK; + *tx_flags |= TX_CMD_FLG_CTS_MSK; + break; + } + } else if (info->control.rates[0].flags & + IEEE80211_TX_RC_USE_CTS_PROTECT) { + *tx_flags &= ~TX_CMD_FLG_RTS_MSK; + *tx_flags |= TX_CMD_FLG_CTS_MSK; + *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; + } +} +EXPORT_SYMBOL(iwl_legacy_tx_cmd_protection); |