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authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>2012-03-07 09:52:41 -0800
committerJohn W. Linville <linville@tuxdriver.com>2012-03-09 11:32:59 -0500
commit3dc420be8ce72688bd333afdab6d911e3ceb94e7 (patch)
tree9016fc5cdcfa4b63e7fb96ed3a0abf73d0b95e6a /drivers/net/wireless/iwlwifi
parentc6f600fcfe8a7e4f594fc4c80b2c7b66f248958b (diff)
downloadlinux-stericsson-3dc420be8ce72688bd333afdab6d911e3ceb94e7.tar.gz
iwlwifi: restore PAN support
in iwlwifi: move setting up fw parameters Meenakshi moved code up to configure the transport layer, but this code read the sku before it was set (from the EEPROM). This killed P2P. Only the ucode_flags are needed to configure the transport layer, not the sku which _must_ be set after the EEPROM is read. We need to reconfigure the transport in case the EEPROM disabled PAN support. This is not the nicest thing to do, but we have no choice. Document that we are allowed to configure the transport several times before start_fw, but not after. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> 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')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn.c59
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-trans.h3
2 files changed, 32 insertions, 30 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 1e6b5e41a72b..28422c03d673 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -1206,35 +1206,17 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
/* TODO: remove fw from shared data later */
priv->shrd->fw = fw;
- /************************
- * 2. Setup HW constants
- ************************/
- iwl_set_hw_params(priv);
+ /*
+ * Populate the state variables that the transport layer needs
+ * to know about.
+ */
+ trans_cfg.op_mode = op_mode;
ucode_flags = fw->ucode_capa.flags;
#ifndef CONFIG_IWLWIFI_P2P
ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
#endif
- if (!(hw_params(priv).sku & EEPROM_SKU_CAP_IPAN_ENABLE))
- ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
-
- /*
- * if not PAN, then don't support P2P -- might be a uCode
- * packaging bug or due to the eeprom check above
- */
- if (!(ucode_flags & IWL_UCODE_TLV_FLAGS_PAN))
- ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
-
-
- /*****************************
- * Configure transport layer
- *****************************/
- /*
- * Populate the state variables that the transport layer needs
- * to know about.
- */
- trans_cfg.op_mode = op_mode;
if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) {
priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
@@ -1277,7 +1259,7 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
spin_lock_init(&priv->statistics.lock);
/***********************
- * 3. Read REV register
+ * 2. Read REV register
***********************/
IWL_INFO(priv, "Detected %s, REV=0x%X\n",
cfg(priv)->name, trans(priv)->hw_rev);
@@ -1287,9 +1269,8 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
goto out_free_traffic_mem;
/*****************
- * 4. Read EEPROM
+ * 3. Read EEPROM
*****************/
- /* Read the EEPROM */
err = iwl_eeprom_init(trans(priv), trans(priv)->hw_rev);
/* Reset chip to save power until we load uCode during "up". */
iwl_trans_stop_hw(trans(priv));
@@ -1318,8 +1299,28 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
priv->hw->wiphy->n_addresses++;
}
+ /************************
+ * 4. Setup HW constants
+ ************************/
+ iwl_set_hw_params(priv);
+
+ if (!(hw_params(priv).sku & EEPROM_SKU_CAP_IPAN_ENABLE)) {
+ IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN");
+ ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
+ /*
+ * if not PAN, then don't support P2P -- might be a uCode
+ * packaging bug or due to the eeprom check above
+ */
+ ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
+ priv->sta_key_max_num = STA_KEY_MAX_NUM;
+ trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
+
+ /* Configure transport layer again*/
+ iwl_trans_configure(trans(priv), &trans_cfg);
+ }
+
/*******************
- * 6. Setup priv
+ * 5. Setup priv
*******************/
err = iwl_init_drv(priv);
@@ -1328,7 +1329,7 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
/* At this point both hw and priv are initialized. */
/********************
- * 7. Setup services
+ * 6. Setup services
********************/
iwl_setup_deferred_work(priv);
iwl_setup_rx_handlers(priv);
@@ -1355,7 +1356,7 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
/**************************************************
* This is still part of probe() in a sense...
*
- * 9. Setup and register with mac80211 and debugfs
+ * 7. Setup and register with mac80211 and debugfs
**************************************************/
err = iwlagn_mac_setup_register(priv, &fw->ucode_capa);
if (err)
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index a40c2726c190..7d1990c7f658 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -335,7 +335,8 @@ struct iwl_trans_config {
* @write32: write a u32 to a register at offset ofs from the BAR
* @read32: read a u32 register at offset ofs from the BAR
* @configure: configure parameters required by the transport layer from
- * the op_mode.
+ * the op_mode. May be called several times before start_fw, can't be
+ * called after that.
*/
struct iwl_trans_ops {