diff options
| author | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2010-12-07 08:06:31 -0800 |
|---|---|---|
| committer | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2010-12-13 15:53:24 -0800 |
| commit | 50619ac9ba48f5ab0c6bcfa10f5d50e4115cdca8 (patch) | |
| tree | ef9b7a7d4af9ac4c6f9faef0d6082e8338b257a3 /drivers/net/wireless/iwlwifi/iwl-core.c | |
| parent | 33c68770a8605d84aea35c2cd90009edfc4b161a (diff) | |
iwlwifi: do not reload fw if WiMAX own the RF
For WiFi/WiMAX combo devices, if WiMAX own the RF, WiFi driver
try to access RF and fail. This is the W/A to To avoid WiFi keep
reloading firmware and try to access RF again.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-core.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index d62b92518417..06cdc60ff87f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -957,6 +957,22 @@ void iwl_irq_handle_error(struct iwl_priv *priv) /* Cancel currently queued command. */ clear_bit(STATUS_HCMD_ACTIVE, &priv->status); + /* W/A for WiFi/WiMAX coex and WiMAX own the RF */ + if (priv->cfg->internal_wimax_coex && + (!(iwl_read_prph(priv, APMG_CLK_CTRL_REG) & + APMS_CLK_VAL_MRB_FUNC_MODE) || + (iwl_read_prph(priv, APMG_PS_CTRL_REG) & + APMG_PS_CTRL_VAL_RESET_REQ))) { + wake_up_interruptible(&priv->wait_command_queue); + /* + *Keep the restart process from trying to send host + * commands by clearing the INIT status bit + */ + clear_bit(STATUS_READY, &priv->status); + IWL_ERR(priv, "RF is used by WiMAX\n"); + return; + } + IWL_ERR(priv, "Loaded firmware version: %s\n", priv->hw->wiphy->fw_version); |