redonkable/alistair23-linux
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mwifiex: add P2P interface

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Due to firmware design, driver needs to add a default P2P interface
to implement find phase and action frame handshake.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stone Piao 2012-09-25 20:23:40 -07:00 committed by John W. Linville
parent 7bff9c974e
commit 197f4a2ec9
3 changed files with 47 additions and 2 deletions
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39
drivers/net/wireless/mwifiex/cfg80211.c
View file

@ -22,7 +22,7 @@
static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
{
.max = 1, .types = BIT(NL80211_IFTYPE_STATION),
.max = 2, .types = BIT(NL80211_IFTYPE_STATION),
},
{
.max = 1, .types = BIT(NL80211_IFTYPE_AP),
@ -1917,6 +1917,41 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
priv->bss_num = 0;
priv->bss_mode = type;
break;
case NL80211_IFTYPE_P2P_CLIENT:
priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
if (priv->bss_mode) {
wiphy_err(wiphy, "Can't create multiple P2P ifaces");
return ERR_PTR(-EINVAL);
}
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!wdev)
return ERR_PTR(-ENOMEM);
priv->wdev = wdev;
wdev->wiphy = wiphy;
/* At start-up, wpa_supplicant tries to change the interface
* to NL80211_IFTYPE_STATION if it is not managed mode.
* So, we initialize it to STA mode.
*/
wdev->iftype = NL80211_IFTYPE_STATION;
priv->bss_mode = NL80211_IFTYPE_STATION;
/* Setting bss_type to P2P tells firmware that this interface
* is receiving P2P peers found during find phase and doing
* action frame handshake.
*/
priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
priv->bss_role = MWIFIEX_BSS_ROLE_STA;
priv->bss_started = 0;
priv->bss_num = 0;
break;
default:
wiphy_err(wiphy, "type not supported\n");
@ -2069,6 +2104,8 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
wiphy->max_remain_on_channel_duration = 5000;
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC) |
BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_P2P_GO) |
BIT(NL80211_IFTYPE_AP);
wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;

3
drivers/net/wireless/mwifiex/decl.h
View file

@ -28,7 +28,7 @@
#include <linux/ieee80211.h>
#define MWIFIEX_MAX_BSS_NUM (2)
#define MWIFIEX_MAX_BSS_NUM (3)
#define MWIFIEX_MIN_DATA_HEADER_LEN 36 /* sizeof(mwifiex_txpd)
* + 4 byte alignment
@ -70,6 +70,7 @@
enum mwifiex_bss_type {
MWIFIEX_BSS_TYPE_STA = 0,
MWIFIEX_BSS_TYPE_UAP = 1,
MWIFIEX_BSS_TYPE_P2P = 2,
MWIFIEX_BSS_TYPE_ANY = 0xff,
};

7
drivers/net/wireless/mwifiex/main.c
View file

@ -369,6 +369,13 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
dev_err(adapter->dev, "cannot create default AP interface\n");
goto err_add_intf;
}
/* Create P2P interface by default */
if (!mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d",
NL80211_IFTYPE_P2P_CLIENT, NULL, NULL)) {
dev_err(adapter->dev, "cannot create default P2P interface\n");
goto err_add_intf;
}
rtnl_unlock();
mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);