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| author | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2009-05-22 11:01:49 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-05-22 14:06:05 -0400 |
| commit | a2b0f02e4795bfde5f11720a10af8923cb98b654 (patch) | |
| tree | 1d2cad3ff20f43ba51aace00a8c2c627fe013581 /drivers/net/wireless/iwlwifi/iwl-4965.c | |
| parent | a9c146b369cd8facbbbec7d8b31440f6eaa43e03 (diff) | |
| download | lwn-a2b0f02e4795bfde5f11720a10af8923cb98b654.tar.gz lwn-a2b0f02e4795bfde5f11720a10af8923cb98b654.zip | |
iwlwifi: support "pure 40MHz" in RXON command
Fix the bug when using 11n "pure 40MHz" mode cause uCode
crashing by adding support for "pure 40MHz" in RX_ON command flag.
the "mode" field (bits 25:26) has value of 0-3
0 = 20 MHz only
1 = 40MHz only
2 = Mixed
3 = Reserved
Control Channel ID (bit 22) is valid only in Mixed mode.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-4965.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 4be7bd29ef6d..7df41163ded2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -293,10 +293,12 @@ restart: queue_work(priv->workqueue, &priv->restart); } -static int is_fat_channel(__le32 rxon_flags) +static bool is_fat_channel(__le32 rxon_flags) { - return (rxon_flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) || - (rxon_flags & RXON_FLG_CHANNEL_MODE_MIXED_MSK); + int chan_mod = le32_to_cpu(rxon_flags & RXON_FLG_CHANNEL_MODE_MSK) + >> RXON_FLG_CHANNEL_MODE_POS; + return ((chan_mod == CHANNEL_MODE_PURE_40) || + (chan_mod == CHANNEL_MODE_MIXED)); } /* @@ -1490,7 +1492,7 @@ static int iwl4965_send_tx_power(struct iwl_priv *priv) struct iwl4965_txpowertable_cmd cmd = { 0 }; int ret; u8 band = 0; - u8 is_fat = 0; + bool is_fat = false; u8 ctrl_chan_high = 0; if (test_bit(STATUS_SCANNING, &priv->status)) { @@ -1568,7 +1570,7 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel) { int rc; u8 band = 0; - u8 is_fat = 0; + bool is_fat = false; u8 ctrl_chan_high = 0; struct iwl4965_channel_switch_cmd cmd = { 0 }; const struct iwl_channel_info *ch_info; |