iwlwifi: initial P2P support

If PAN functionality is present, advertise
P2P interface type support and thus support
for P2P. However, the support is currently
somewhat incomplete -- NoA schedule isn't
added to probe responses, and 11b bitrates
may be used still, etc. Therefore, make it
all optional with a Kconfig option.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig
index 236f900..e1e3b1c 100644 (file)
--- a/drivers/net/wireless/iwlwifi/Kconfig
+++ b/drivers/net/wireless/iwlwifi/Kconfig
@@ -116,6 +116,22 @@ config IWL5000
                Intel 100 Series Wi-Fi Adapters (100BGN and 130BGN)
                Intel 2000 Series Wi-Fi Adapters
 
+config IWL_P2P
+       bool "iwlwifi experimental P2P support"
+       depends on IWL5000
+       help
+         This option enables experimental P2P support for some devices
+         based on microcode support. Since P2P support is still under
+         development, this option may even enable it for some devices
+         now that turn out to not support it in the future due to
+         microcode restrictions.
+
+         To determine if your microcode supports the experimental P2P
+         offered by this option, check if the driver advertises AP
+         support when it is loaded.
+
+         Say Y only if you want to experiment with P2P.
+
 config IWL3945
        tristate "Intel PRO/Wireless 3945ABG/BG Network Connection (iwl3945)"
        depends on IWLWIFI

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 02771ef..eb16647 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -4136,6 +4136,10 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE;
        priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
                BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
+#ifdef CONFIG_IWL_P2P
+       priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
+               BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
+#endif
        priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
        priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
        priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 8e1b801..a46ad60 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1404,9 +1404,10 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
        struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
        struct iwl_rxon_context *tmp, *ctx = NULL;
        int err;
+       enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif);
 
        IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
-                          vif->type, vif->addr);
+                          viftype, vif->addr);
 
        mutex_lock(&priv->mutex);
 
@@ -1430,7 +1431,7 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
                        continue;
                }
 
-               if (!(possible_modes & BIT(vif->type)))
+               if (!(possible_modes & BIT(viftype)))
                        continue;
 
                /* have maybe usable context w/o interface */