blob: 495621f4a1d18f3ffde931845eca535099b45482 [file] [log] [blame]
/*
* Marvell Wireless LAN device driver: CFG80211
*
* Copyright (C) 2011-2014, Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
* (the "License"). You may use, redistribute and/or modify this File in
* accordance with the terms and conditions of the License, a copy of which
* is available by writing to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
* this warranty disclaimer.
*/
#include "cfg80211.h"
#include "main.h"
static char *reg_alpha2;
module_param(reg_alpha2, charp, 0);
static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
{
.max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_P2P_GO) |
BIT(NL80211_IFTYPE_P2P_CLIENT),
},
{
.max = 1, .types = BIT(NL80211_IFTYPE_AP),
},
};
static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
.limits = mwifiex_ap_sta_limits,
.num_different_channels = 1,
.n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
.max_interfaces = MWIFIEX_MAX_BSS_NUM,
.beacon_int_infra_match = true,
};
/*
* This function maps the nl802.11 channel type into driver channel type.
*
* The mapping is as follows -
* NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
* NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
* NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
* NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
* Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
*/
u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
{
switch (chan_type) {
case NL80211_CHAN_NO_HT:
case NL80211_CHAN_HT20:
return IEEE80211_HT_PARAM_CHA_SEC_NONE;
case NL80211_CHAN_HT40PLUS:
return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
case NL80211_CHAN_HT40MINUS:
return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
default:
return IEEE80211_HT_PARAM_CHA_SEC_NONE;
}
}
/* This function maps IEEE HT secondary channel type to NL80211 channel type
*/
u8 mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)
{
switch (second_chan_offset) {
case IEEE80211_HT_PARAM_CHA_SEC_NONE:
return NL80211_CHAN_HT20;
case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
return NL80211_CHAN_HT40PLUS;
case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
return NL80211_CHAN_HT40MINUS;
default:
return NL80211_CHAN_HT20;
}
}
/*
* This function checks whether WEP is set.
*/
static int
mwifiex_is_alg_wep(u32 cipher)
{
switch (cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
return 1;
default:
break;
}
return 0;
}
/*
* This function retrieves the private structure from kernel wiphy structure.
*/
static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
{
return (void *) (*(unsigned long *) wiphy_priv(wiphy));
}
/*
* CFG802.11 operation handler to delete a network key.
*/
static int
mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, bool pairwise, const u8 *mac_addr)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
wiphy_err(wiphy, "deleting the crypto keys\n");
return -EFAULT;
}
wiphy_dbg(wiphy, "info: crypto keys deleted\n");
return 0;
}
/*
* This function forms an skb for management frame.
*/
static int
mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
{
u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
u16 pkt_len;
u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
pkt_len = len + ETH_ALEN;
skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
memcpy(skb_push(skb, sizeof(tx_control)),
&tx_control, sizeof(tx_control));
memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
/* Add packet data and address4 */
memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
sizeof(struct ieee80211_hdr_3addr));
memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
buf + sizeof(struct ieee80211_hdr_3addr),
len - sizeof(struct ieee80211_hdr_3addr));
skb->priority = LOW_PRIO_TID;
__net_timestamp(skb);
return 0;
}
/*
* CFG802.11 operation handler to transmit a management frame.
*/
static int
mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct cfg80211_mgmt_tx_params *params, u64 *cookie)
{
const u8 *buf = params->buf;
size_t len = params->len;
struct sk_buff *skb;
u16 pkt_len;
const struct ieee80211_mgmt *mgmt;
struct mwifiex_txinfo *tx_info;
struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
if (!buf || !len) {
wiphy_err(wiphy, "invalid buffer and length\n");
return -EFAULT;
}
mgmt = (const struct ieee80211_mgmt *)buf;
if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
ieee80211_is_probe_resp(mgmt->frame_control)) {
/* Since we support offload probe resp, we need to skip probe
* resp in AP or GO mode */
wiphy_dbg(wiphy,
"info: skip to send probe resp in AP or GO mode\n");
return 0;
}
pkt_len = len + ETH_ALEN;
skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
MWIFIEX_MGMT_FRAME_HEADER_SIZE +
pkt_len + sizeof(pkt_len));
if (!skb) {
wiphy_err(wiphy, "allocate skb failed for management frame\n");
return -ENOMEM;
}
tx_info = MWIFIEX_SKB_TXCB(skb);
memset(tx_info, 0, sizeof(*tx_info));
tx_info->bss_num = priv->bss_num;
tx_info->bss_type = priv->bss_type;
tx_info->pkt_len = pkt_len;
mwifiex_form_mgmt_frame(skb, buf, len);
*cookie = prandom_u32() | 1;
if (ieee80211_is_action(mgmt->frame_control))
skb = mwifiex_clone_skb_for_tx_status(priv,
skb,
MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
else
cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
GFP_ATOMIC);
mwifiex_queue_tx_pkt(priv, skb);
wiphy_dbg(wiphy, "info: management frame transmitted\n");
return 0;
}
/*
* CFG802.11 operation handler to register a mgmt frame.
*/
static void
mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
struct wireless_dev *wdev,
u16 frame_type, bool reg)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
u32 mask;
if (reg)
mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
else
mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
if (mask != priv->mgmt_frame_mask) {
priv->mgmt_frame_mask = mask;
mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
HostCmd_ACT_GEN_SET, 0,
&priv->mgmt_frame_mask, false);
wiphy_dbg(wiphy, "info: mgmt frame registered\n");
}
}
/*
* CFG802.11 operation handler to remain on channel.
*/
static int
mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct ieee80211_channel *chan,
unsigned int duration, u64 *cookie)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
int ret;
if (!chan || !cookie) {
wiphy_err(wiphy, "Invalid parameter for ROC\n");
return -EINVAL;
}
if (priv->roc_cfg.cookie) {
wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llx\n",
priv->roc_cfg.cookie);
return -EBUSY;
}
ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
duration);
if (!ret) {
*cookie = prandom_u32() | 1;
priv->roc_cfg.cookie = *cookie;
priv->roc_cfg.chan = *chan;
cfg80211_ready_on_channel(wdev, *cookie, chan,
duration, GFP_ATOMIC);
wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
}
return ret;
}
/*
* CFG802.11 operation handler to cancel remain on channel.
*/
static int
mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
struct wireless_dev *wdev, u64 cookie)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
int ret;
if (cookie != priv->roc_cfg.cookie)
return -ENOENT;
ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
&priv->roc_cfg.chan, 0);
if (!ret) {
cfg80211_remain_on_channel_expired(wdev, cookie,
&priv->roc_cfg.chan,
GFP_ATOMIC);
memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
}
return ret;
}
/*
* CFG802.11 operation handler to set Tx power.
*/
static int
mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
struct wireless_dev *wdev,
enum nl80211_tx_power_setting type,
int mbm)
{
struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
struct mwifiex_private *priv;
struct mwifiex_power_cfg power_cfg;
int dbm = MBM_TO_DBM(mbm);
if (type == NL80211_TX_POWER_FIXED) {
power_cfg.is_power_auto = 0;
power_cfg.power_level = dbm;
} else {
power_cfg.is_power_auto = 1;
}
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
return mwifiex_set_tx_power(priv, &power_cfg);
}
/*
* CFG802.11 operation handler to set Power Save option.
*
* The timeout value, if provided, is currently ignored.
*/
static int
mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
struct net_device *dev,
bool enabled, int timeout)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
u32 ps_mode;
if (timeout)
wiphy_dbg(wiphy,
"info: ignore timeout value for IEEE Power Save\n");
ps_mode = enabled;
return mwifiex_drv_set_power(priv, &ps_mode);
}
/*
* CFG802.11 operation handler to set the default network key.
*/
static int
mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, bool unicast,
bool multicast)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
/* Return if WEP key not configured */
if (!priv->sec_info.wep_enabled)
return 0;
if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
priv->wep_key_curr_index = key_index;
} else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
NULL, 0)) {
wiphy_err(wiphy, "set default Tx key index\n");
return -EFAULT;
}
return 0;
}
/*
* CFG802.11 operation handler to add a network key.
*/
static int
mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, bool pairwise, const u8 *mac_addr,
struct key_params *params)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
struct mwifiex_wep_key *wep_key;
const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
(params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
if (params->key && params->key_len) {
wep_key = &priv->wep_key[key_index];
memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
memcpy(wep_key->key_material, params->key,
params->key_len);
wep_key->key_index = key_index;
wep_key->key_length = params->key_len;
priv->sec_info.wep_enabled = 1;
}
return 0;
}
if (mwifiex_set_encode(priv, params, params->key, params->key_len,
key_index, peer_mac, 0)) {
wiphy_err(wiphy, "crypto keys added\n");
return -EFAULT;
}
return 0;
}
/*
* This function sends domain information to the firmware.
*
* The following information are passed to the firmware -
* - Country codes
* - Sub bands (first channel, number of channels, maximum Tx power)
*/
static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
{
u8 no_of_triplet = 0;
struct ieee80211_country_ie_triplet *t;
u8 no_of_parsed_chan = 0;
u8 first_chan = 0, next_chan = 0, max_pwr = 0;
u8 i, flag = 0;
enum ieee80211_band band;
struct ieee80211_supported_band *sband;
struct ieee80211_channel *ch;
struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
struct mwifiex_private *priv;
struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
/* Set country code */
domain_info->country_code[0] = adapter->country_code[0];
domain_info->country_code[1] = adapter->country_code[1];
domain_info->country_code[2] = ' ';
band = mwifiex_band_to_radio_type(adapter->config_bands);
if (!wiphy->bands[band]) {
wiphy_err(wiphy, "11D: setting domain info in FW\n");
return -1;
}
sband = wiphy->bands[band];
for (i = 0; i < sband->n_channels ; i++) {
ch = &sband->channels[i];
if (ch->flags & IEEE80211_CHAN_DISABLED)
continue;
if (!flag) {
flag = 1;
first_chan = (u32) ch->hw_value;
next_chan = first_chan;
max_pwr = ch->max_power;
no_of_parsed_chan = 1;
continue;
}
if (ch->hw_value == next_chan + 1 &&
ch->max_power == max_pwr) {
next_chan++;
no_of_parsed_chan++;
} else {
t = &domain_info->triplet[no_of_triplet];
t->chans.first_channel = first_chan;
t->chans.num_channels = no_of_parsed_chan;
t->chans.max_power = max_pwr;
no_of_triplet++;
first_chan = (u32) ch->hw_value;
next_chan = first_chan;
max_pwr = ch->max_power;
no_of_parsed_chan = 1;
}
}
if (flag) {
t = &domain_info->triplet[no_of_triplet];
t->chans.first_channel = first_chan;
t->chans.num_channels = no_of_parsed_chan;
t->chans.max_power = max_pwr;
no_of_triplet++;
}
domain_info->no_of_triplet = no_of_triplet;
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
HostCmd_ACT_GEN_SET, 0, NULL, false)) {
wiphy_err(wiphy, "11D: setting domain info in FW\n");
return -1;
}
return 0;
}
/*
* CFG802.11 regulatory domain callback function.
*
* This function is called when the regulatory domain is changed due to the
* following reasons -
* - Set by driver
* - Set by system core
* - Set by user
* - Set bt Country IE
*/
static void mwifiex_reg_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
struct mwifiex_private *priv = mwifiex_get_priv(adapter,
MWIFIEX_BSS_ROLE_ANY);
wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
request->alpha2[0], request->alpha2[1]);
switch (request->initiator) {
case NL80211_REGDOM_SET_BY_DRIVER:
case NL80211_REGDOM_SET_BY_CORE:
case NL80211_REGDOM_SET_BY_USER:
case NL80211_REGDOM_SET_BY_COUNTRY_IE:
break;
default:
wiphy_err(wiphy, "unknown regdom initiator: %d\n",
request->initiator);
return;
}
/* Don't send world or same regdom info to firmware */
if (strncmp(request->alpha2, "00", 2) &&
strncmp(request->alpha2, adapter->country_code,
sizeof(request->alpha2))) {
memcpy(adapter->country_code, request->alpha2,
sizeof(request->alpha2));
mwifiex_send_domain_info_cmd_fw(wiphy);
mwifiex_dnld_txpwr_table(priv);
}
}
/*
* This function sets the fragmentation threshold.
*
* The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
* and MWIFIEX_FRAG_MAX_VALUE.
*/
static int
mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
{
if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
frag_thr > MWIFIEX_FRAG_MAX_VALUE)
frag_thr = MWIFIEX_FRAG_MAX_VALUE;
return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
&frag_thr, true);
}
/*
* This function sets the RTS threshold.
* The rts value must lie between MWIFIEX_RTS_MIN_VALUE
* and MWIFIEX_RTS_MAX_VALUE.
*/
static int
mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
{
if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
rts_thr = MWIFIEX_RTS_MAX_VALUE;
return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
HostCmd_ACT_GEN_SET, RTS_THRESH_I,
&rts_thr, true);
}
/*
* CFG802.11 operation handler to set wiphy parameters.
*
* This function can be used to set the RTS threshold and the
* Fragmentation threshold of the driver.
*/
static int
mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
{
struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
struct mwifiex_private *priv;
struct mwifiex_uap_bss_param *bss_cfg;
int ret;
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
switch (priv->bss_role) {
case MWIFIEX_BSS_ROLE_UAP:
if (priv->bss_started) {
dev_err(adapter->dev,
"cannot change wiphy params when bss started");
return -EINVAL;
}
bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
if (!bss_cfg)
return -ENOMEM;
mwifiex_set_sys_config_invalid_data(bss_cfg);
if (changed & WIPHY_PARAM_RTS_THRESHOLD)
bss_cfg->rts_threshold = wiphy->rts_threshold;
if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
bss_cfg->frag_threshold = wiphy->frag_threshold;
if (changed & WIPHY_PARAM_RETRY_LONG)
bss_cfg->retry_limit = wiphy->retry_long;
ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
HostCmd_ACT_GEN_SET,
UAP_BSS_PARAMS_I, bss_cfg,
false);
kfree(bss_cfg);
if (ret) {
wiphy_err(wiphy, "Failed to set wiphy phy params\n");
return ret;
}
break;
case MWIFIEX_BSS_ROLE_STA:
if (priv->media_connected) {
dev_err(adapter->dev,
"cannot change wiphy params when connected");
return -EINVAL;
}
if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
ret = mwifiex_set_rts(priv,
wiphy->rts_threshold);
if (ret)
return ret;
}
if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
ret = mwifiex_set_frag(priv,
wiphy->frag_threshold);
if (ret)
return ret;
}
break;
}
return 0;
}
static int
mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
{
u16 mode = P2P_MODE_DISABLE;
if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
HostCmd_ACT_GEN_SET, 0, &mode, true))
return -1;
return 0;
}
/*
* This function initializes the functionalities for P2P client.
* The P2P client initialization sequence is:
* disable -> device -> client
*/
static int
mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
{
u16 mode;
if (mwifiex_cfg80211_deinit_p2p(priv))
return -1;
mode = P2P_MODE_DEVICE;
if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
HostCmd_ACT_GEN_SET, 0, &mode, true))
return -1;
mode = P2P_MODE_CLIENT;
if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
HostCmd_ACT_GEN_SET, 0, &mode, true))
return -1;
return 0;
}
/*
* This function initializes the functionalities for P2P GO.
* The P2P GO initialization sequence is:
* disable -> device -> GO
*/
static int
mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
{
u16 mode;
if (mwifiex_cfg80211_deinit_p2p(priv))
return -1;
mode = P2P_MODE_DEVICE;
if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
HostCmd_ACT_GEN_SET, 0, &mode, true))
return -1;
mode = P2P_MODE_GO;
if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
HostCmd_ACT_GEN_SET, 0, &mode, true))
return -1;
return 0;
}
static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
{
struct mwifiex_adapter *adapter = priv->adapter;
unsigned long flags;
priv->mgmt_frame_mask = 0;
if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
HostCmd_ACT_GEN_SET, 0,
&priv->mgmt_frame_mask, false)) {
dev_warn(priv->adapter->dev,
"could not unregister mgmt frame rx\n");
return -1;
}
mwifiex_deauthenticate(priv, NULL);
spin_lock_irqsave(&adapter->main_proc_lock, flags);
adapter->main_locked = true;
if (adapter->mwifiex_processing) {
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
flush_workqueue(adapter->workqueue);
} else {
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
}
spin_lock_irqsave(&adapter->rx_proc_lock, flags);
adapter->rx_locked = true;
if (adapter->rx_processing) {
spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
flush_workqueue(adapter->rx_workqueue);
} else {
spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
}
mwifiex_free_priv(priv);
priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
return 0;
}
static int
mwifiex_init_new_priv_params(struct mwifiex_private *priv,
struct net_device *dev,
enum nl80211_iftype type)
{
struct mwifiex_adapter *adapter = priv->adapter;
unsigned long flags;
mwifiex_init_priv(priv);
priv->bss_mode = type;
priv->wdev.iftype = type;
mwifiex_init_priv_params(priv, priv->netdev);
priv->bss_started = 0;
switch (type) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
priv->bss_role = MWIFIEX_BSS_ROLE_STA;
priv->bss_type = MWIFIEX_BSS_TYPE_STA;
break;
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
priv->bss_role = MWIFIEX_BSS_ROLE_STA;
priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
break;
case NL80211_IFTYPE_AP:
priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
break;
default:
dev_err(priv->adapter->dev,
"%s: changing to %d not supported\n",
dev->name, type);
return -EOPNOTSUPP;
}
spin_lock_irqsave(&adapter->main_proc_lock, flags);
adapter->main_locked = false;
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
spin_lock_irqsave(&adapter->rx_proc_lock, flags);
adapter->rx_locked = false;
spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
return 0;
}
static int
mwifiex_change_vif_to_p2p(struct net_device *dev,
enum nl80211_iftype curr_iftype,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
struct mwifiex_private *priv;
struct mwifiex_adapter *adapter;
priv = mwifiex_netdev_get_priv(dev);
if (!priv)
return -1;
adapter = priv->adapter;
if (adapter->curr_iface_comb.p2p_intf ==
adapter->iface_limit.p2p_intf) {
dev_err(adapter->dev,
"cannot create multiple P2P ifaces\n");
return -1;
}
dev_dbg(priv->adapter->dev, "%s: changing role to p2p\n", dev->name);
if (mwifiex_deinit_priv_params(priv))
return -1;
if (mwifiex_init_new_priv_params(priv, dev, type))
return -1;
switch (type) {
case NL80211_IFTYPE_P2P_CLIENT:
if (mwifiex_cfg80211_init_p2p_client(priv))
return -EFAULT;
break;
case NL80211_IFTYPE_P2P_GO:
if (mwifiex_cfg80211_init_p2p_go(priv))
return -EFAULT;
break;
default:
dev_err(priv->adapter->dev,
"%s: changing to %d not supported\n",
dev->name, type);
return -EOPNOTSUPP;
}
if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
HostCmd_ACT_GEN_SET, 0, NULL, true))
return -1;
if (mwifiex_sta_init_cmd(priv, false, false))
return -1;
switch (curr_iftype) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
adapter->curr_iface_comb.sta_intf--;
break;
case NL80211_IFTYPE_AP:
adapter->curr_iface_comb.uap_intf--;
break;
default:
break;
}
adapter->curr_iface_comb.p2p_intf++;
dev->ieee80211_ptr->iftype = type;
return 0;
}
static int
mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
enum nl80211_iftype curr_iftype,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
struct mwifiex_private *priv;
struct mwifiex_adapter *adapter;
priv = mwifiex_netdev_get_priv(dev);
if (!priv)
return -1;
adapter = priv->adapter;
if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
curr_iftype != NL80211_IFTYPE_P2P_GO) &&
(adapter->curr_iface_comb.sta_intf ==
adapter->iface_limit.sta_intf)) {
dev_err(adapter->dev,
"cannot create multiple station/adhoc ifaces\n");
return -1;
}
if (type == NL80211_IFTYPE_STATION)
dev_notice(adapter->dev,
"%s: changing role to station\n", dev->name);
else
dev_notice(adapter->dev,
"%s: changing role to adhoc\n", dev->name);
if (mwifiex_deinit_priv_params(priv))
return -1;
if (mwifiex_init_new_priv_params(priv, dev, type))
return -1;
if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
HostCmd_ACT_GEN_SET, 0, NULL, true))
return -1;
if (mwifiex_sta_init_cmd(priv, false, false))
return -1;
switch (curr_iftype) {
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
adapter->curr_iface_comb.p2p_intf--;
break;
case NL80211_IFTYPE_AP:
adapter->curr_iface_comb.uap_intf--;
break;
default:
break;
}
adapter->curr_iface_comb.sta_intf++;
dev->ieee80211_ptr->iftype = type;
return 0;
}
static int
mwifiex_change_vif_to_ap(struct net_device *dev,
enum nl80211_iftype curr_iftype,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
struct mwifiex_private *priv;
struct mwifiex_adapter *adapter;
priv = mwifiex_netdev_get_priv(dev);
if (!priv)
return -1;
adapter = priv->adapter;
if (adapter->curr_iface_comb.uap_intf ==
adapter->iface_limit.uap_intf) {
dev_err(adapter->dev,
"cannot create multiple AP ifaces\n");
return -1;
}
dev_notice(adapter->dev, "%s: changing role to AP\n", dev->name);
if (mwifiex_deinit_priv_params(priv))
return -1;
if (mwifiex_init_new_priv_params(priv, dev, type))
return -1;
if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
HostCmd_ACT_GEN_SET, 0, NULL, true))
return -1;
if (mwifiex_sta_init_cmd(priv, false, false))
return -1;
switch (curr_iftype) {
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
adapter->curr_iface_comb.p2p_intf--;
break;
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
adapter->curr_iface_comb.sta_intf--;
break;
default:
break;
}
adapter->curr_iface_comb.uap_intf++;
dev->ieee80211_ptr->iftype = type;
return 0;
}
/*
* CFG802.11 operation handler to change interface type.
*/
static int
mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
struct net_device *dev,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
switch (curr_iftype) {
case NL80211_IFTYPE_ADHOC:
switch (type) {
case NL80211_IFTYPE_STATION:
priv->bss_mode = type;
priv->sec_info.authentication_mode =
NL80211_AUTHTYPE_OPEN_SYSTEM;
dev->ieee80211_ptr->iftype = type;
mwifiex_deauthenticate(priv, NULL);
return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
HostCmd_ACT_GEN_SET, 0, NULL,
true);
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
return mwifiex_change_vif_to_p2p(dev, curr_iftype,
type, flags, params);
case NL80211_IFTYPE_AP:
return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
flags, params);
case NL80211_IFTYPE_UNSPECIFIED:
wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
return 0;
default:
wiphy_err(wiphy, "%s: changing to %d not supported\n",
dev->name, type);
return -EOPNOTSUPP;
}
break;
case NL80211_IFTYPE_STATION:
switch (type) {
case NL80211_IFTYPE_ADHOC:
priv->bss_mode = type;
priv->sec_info.authentication_mode =
NL80211_AUTHTYPE_OPEN_SYSTEM;
dev->ieee80211_ptr->iftype = type;
mwifiex_deauthenticate(priv, NULL);
return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
HostCmd_ACT_GEN_SET, 0, NULL,
true);
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
return mwifiex_change_vif_to_p2p(dev, curr_iftype,
type, flags, params);
case NL80211_IFTYPE_AP:
return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
flags, params);
case NL80211_IFTYPE_UNSPECIFIED:
wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
case NL80211_IFTYPE_STATION: /* This shouldn't happen */
return 0;
default:
wiphy_err(wiphy, "%s: changing to %d not supported\n",
dev->name, type);
return -EOPNOTSUPP;
}
break;
case NL80211_IFTYPE_AP:
switch (type) {
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_STATION:
return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
type, flags,
params);
break;
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
return mwifiex_change_vif_to_p2p(dev, curr_iftype,
type, flags, params);
case NL80211_IFTYPE_UNSPECIFIED:
wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
case NL80211_IFTYPE_AP: /* This shouldn't happen */
return 0;
default:
wiphy_err(wiphy, "%s: changing to %d not supported\n",
dev->name, type);
return -EOPNOTSUPP;
}
break;
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
switch (type) {
case NL80211_IFTYPE_STATION:
if (mwifiex_cfg80211_init_p2p_client(priv))
return -EFAULT;
dev->ieee80211_ptr->iftype = type;
break;
case NL80211_IFTYPE_ADHOC:
if (mwifiex_cfg80211_deinit_p2p(priv))
return -EFAULT;
return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
type, flags,
params);
break;
case NL80211_IFTYPE_AP:
if (mwifiex_cfg80211_deinit_p2p(priv))
return -EFAULT;
return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
flags, params);
case NL80211_IFTYPE_UNSPECIFIED:
wiphy_warn(wiphy, "%s: kept type as P2P\n", dev->name);
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
return 0;
default:
wiphy_err(wiphy, "%s: changing to %d not supported\n",
dev->name, type);
return -EOPNOTSUPP;
}
break;
default:
wiphy_err(wiphy, "%s: unknown iftype: %d\n",
dev->name, dev->ieee80211_ptr->iftype);
return -EOPNOTSUPP;
}
return 0;
}
static void
mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
struct rate_info *rate)
{
struct mwifiex_adapter *adapter = priv->adapter;
if (adapter->is_hw_11ac_capable) {
/* bit[1-0]: 00=LG 01=HT 10=VHT */
if (tx_htinfo & BIT(0)) {
/* HT */
rate->mcs = priv->tx_rate;
rate->flags |= RATE_INFO_FLAGS_MCS;
}
if (tx_htinfo & BIT(1)) {
/* VHT */
rate->mcs = priv->tx_rate & 0x0F;
rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
}
if (tx_htinfo & (BIT(1) | BIT(0))) {
/* HT or VHT */
switch (tx_htinfo & (BIT(3) | BIT(2))) {
case 0:
rate->bw = RATE_INFO_BW_20;
break;
case (BIT(2)):
rate->bw = RATE_INFO_BW_40;
break;
case (BIT(3)):
rate->bw = RATE_INFO_BW_80;
break;
case (BIT(3) | BIT(2)):
rate->bw = RATE_INFO_BW_160;
break;
}
if (tx_htinfo & BIT(4))
rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
if ((priv->tx_rate >> 4) == 1)
rate->nss = 2;
else
rate->nss = 1;
}
} else {
/*
* Bit 0 in tx_htinfo indicates that current Tx rate
* is 11n rate. Valid MCS index values for us are 0 to 15.
*/
if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
rate->mcs = priv->tx_rate;
rate->flags |= RATE_INFO_FLAGS_MCS;
rate->bw = RATE_INFO_BW_20;
if (tx_htinfo & BIT(1))
rate->bw = RATE_INFO_BW_40;
if (tx_htinfo & BIT(2))
rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
}
}
}
/*
* This function dumps the station information on a buffer.
*
* The following information are shown -
* - Total bytes transmitted
* - Total bytes received
* - Total packets transmitted
* - Total packets received
* - Signal quality level
* - Transmission rate
*/
static int
mwifiex_dump_station_info(struct mwifiex_private *priv,
struct mwifiex_sta_node *node,
struct station_info *sinfo)
{
u32 rate;
sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
BIT(NL80211_STA_INFO_TX_BITRATE) |
BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
if (!node)
return -ENOENT;
sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
BIT(NL80211_STA_INFO_TX_FAILED);
sinfo->inactive_time =
jiffies_to_msecs(jiffies - node->stats.last_rx);
sinfo->signal = node->stats.rssi;
sinfo->signal_avg = node->stats.rssi;
sinfo->rx_bytes = node->stats.rx_bytes;
sinfo->tx_bytes = node->stats.tx_bytes;
sinfo->rx_packets = node->stats.rx_packets;
sinfo->tx_packets = node->stats.tx_packets;
sinfo->tx_failed = node->stats.tx_failed;
mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
&sinfo->txrate);
sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
return 0;
}
/* Get signal information from the firmware */
if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
HostCmd_ACT_GEN_GET, 0, NULL, true)) {
dev_err(priv->adapter->dev, "failed to get signal information\n");
return -EFAULT;
}
if (mwifiex_drv_get_data_rate(priv, &rate)) {
dev_err(priv->adapter->dev, "getting data rate\n");
return -EFAULT;
}
/* Get DTIM period information from firmware */
mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
&priv->dtim_period, true);
mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
sinfo->signal_avg = priv->bcn_rssi_avg;
sinfo->rx_bytes = priv->stats.rx_bytes;
sinfo->tx_bytes = priv->stats.tx_bytes;
sinfo->rx_packets = priv->stats.rx_packets;
sinfo->tx_packets = priv->stats.tx_packets;
sinfo->signal = priv->bcn_rssi_avg;
/* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
sinfo->txrate.legacy = rate * 5;
if (priv->bss_mode == NL80211_IFTYPE_STATION) {
sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
sinfo->bss_param.flags = 0;
if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
WLAN_CAPABILITY_SHORT_PREAMBLE)
sinfo->bss_param.flags |=
BSS_PARAM_FLAGS_SHORT_PREAMBLE;
if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
WLAN_CAPABILITY_SHORT_SLOT_TIME)
sinfo->bss_param.flags |=
BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
sinfo->bss_param.dtim_period = priv->dtim_period;
sinfo->bss_param.beacon_interval =
priv->curr_bss_params.bss_descriptor.beacon_period;
}
return 0;
}
/*
* CFG802.11 operation handler to get station information.
*
* This function only works in connected mode, and dumps the
* requested station information, if available.
*/
static int
mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
const u8 *mac, struct station_info *sinfo)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
struct mwifiex_sta_node *node;
if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
list_for_each_entry(node, &priv->sta_list, list) {
if (memcmp(mac, node->mac_addr, ETH_ALEN) == 0)
return mwifiex_dump_station_info(priv, node,
sinfo);
}
return -ENOENT;
}
if (!priv->media_connected)
return -ENOENT;
if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
return -ENOENT;
return mwifiex_dump_station_info(priv, NULL, sinfo);
}
/*
* CFG802.11 operation handler to dump station information.
*/
static int
mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
int idx, u8 *mac, struct station_info *sinfo)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
static struct mwifiex_sta_node *node;
if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
priv->media_connected && idx == 0) {
ether_addr_copy(mac, priv->cfg_bssid);
return mwifiex_dump_station_info(priv, NULL, sinfo);
} else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
HostCmd_ACT_GEN_GET, 0, NULL, true);
if (node && (&node->list == &priv->sta_list)) {
node = NULL;
return -ENOENT;
}
node = list_prepare_entry(node, &priv->sta_list, list);
list_for_each_entry_continue(node, &priv->sta_list, list) {
ether_addr_copy(mac, node->mac_addr);
return mwifiex_dump_station_info(priv, node, sinfo);
}
}
return -ENOENT;
}
static int
mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
int idx, struct survey_info *survey)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
enum ieee80211_band band;
dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx);
memset(survey, 0, sizeof(struct survey_info));
if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
priv->media_connected && idx == 0) {
u8 curr_bss_band = priv->curr_bss_params.band;
u32 chan = priv->curr_bss_params.bss_descriptor.channel;
band = mwifiex_band_to_radio_type(curr_bss_band);
survey->channel = ieee80211_get_channel(wiphy,
ieee80211_channel_to_frequency(chan, band));
if (priv->bcn_nf_last) {
survey->filled = SURVEY_INFO_NOISE_DBM;
survey->noise = priv->bcn_nf_last;
}
return 0;
}
if (idx >= priv->adapter->num_in_chan_stats)
return -ENOENT;
if (!pchan_stats[idx].cca_scan_dur)
return 0;
band = pchan_stats[idx].bandcfg;
survey->channel = ieee80211_get_channel(wiphy,
ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
survey->filled = SURVEY_INFO_NOISE_DBM |
SURVEY_INFO_TIME |
SURVEY_INFO_TIME_BUSY;
survey->noise = pchan_stats[idx].noise;
survey->time = pchan_stats[idx].cca_scan_dur;
survey->time_busy = pchan_stats[idx].cca_busy_dur;
return 0;
}
/* Supported rates to be advertised to the cfg80211 */
static struct ieee80211_rate mwifiex_rates[] = {
{.bitrate = 10, .hw_value = 2, },
{.bitrate = 20, .hw_value = 4, },
{.bitrate = 55, .hw_value = 11, },
{.bitrate = 110, .hw_value = 22, },
{.bitrate = 60, .hw_value = 12, },
{.bitrate = 90, .hw_value = 18, },
{.bitrate = 120, .hw_value = 24, },
{.bitrate = 180, .hw_value = 36, },
{.bitrate = 240, .hw_value = 48, },
{.bitrate = 360, .hw_value = 72, },
{.bitrate = 480, .hw_value = 96, },
{.bitrate = 540, .hw_value = 108, },
};
/* Channel definitions to be advertised to cfg80211 */
static struct ieee80211_channel mwifiex_channels_2ghz[] = {
{.center_freq = 2412, .hw_value = 1, },
{.center_freq = 2417, .hw_value = 2, },
{.center_freq = 2422, .hw_value = 3, },
{.center_freq = 2427, .hw_value = 4, },
{.center_freq = 2432, .hw_value = 5, },
{.center_freq = 2437, .hw_value = 6, },
{.center_freq = 2442, .hw_value = 7, },
{.center_freq = 2447, .hw_value = 8, },
{.center_freq = 2452, .hw_value = 9, },
{.center_freq = 2457, .hw_value = 10, },
{.center_freq = 2462, .hw_value = 11, },
{.center_freq = 2467, .hw_value = 12, },
{.center_freq = 2472, .hw_value = 13, },
{.center_freq = 2484, .hw_value = 14, },
};
static struct ieee80211_supported_band mwifiex_band_2ghz = {
.channels = mwifiex_channels_2ghz,
.n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
.bitrates = mwifiex_rates,
.n_bitrates = ARRAY_SIZE(mwifiex_rates),
};
static struct ieee80211_channel mwifiex_channels_5ghz[] = {
{.center_freq = 5040, .hw_value = 8, },
{.center_freq = 5060, .hw_value = 12, },
{.center_freq = 5080, .hw_value = 16, },
{.center_freq = 5170, .hw_value = 34, },
{.center_freq = 5190, .hw_value = 38, },
{.center_freq = 5210, .hw_value = 42, },
{.center_freq = 5230, .hw_value = 46, },
{.center_freq = 5180, .hw_value = 36, },
{.center_freq = 5200, .hw_value = 40, },
{.center_freq = 5220, .hw_value = 44, },
{.center_freq = 5240, .hw_value = 48, },
{.center_freq = 5260, .hw_value = 52, },
{.center_freq = 5280, .hw_value = 56, },
{.center_freq = 5300, .hw_value = 60, },
{.center_freq = 5320, .hw_value = 64, },
{.center_freq = 5500, .hw_value = 100, },
{.center_freq = 5520, .hw_value = 104, },
{.center_freq = 5540, .hw_value = 108, },
{.center_freq = 5560, .hw_value = 112, },
{.center_freq = 5580, .hw_value = 116, },
{.center_freq = 5600, .hw_value = 120, },
{.center_freq = 5620, .hw_value = 124, },
{.center_freq = 5640, .hw_value = 128, },
{.center_freq = 5660, .hw_value = 132, },
{.center_freq = 5680, .hw_value = 136, },
{.center_freq = 5700, .hw_value = 140, },
{.center_freq = 5745, .hw_value = 149, },
{.center_freq = 5765, .hw_value = 153, },
{.center_freq = 5785, .hw_value = 157, },
{.center_freq = 5805, .hw_value = 161, },
{.center_freq = 5825, .hw_value = 165, },
};
static struct ieee80211_supported_band mwifiex_band_5ghz = {
.channels = mwifiex_channels_5ghz,
.n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
.bitrates = mwifiex_rates + 4,
.n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
};
/* Supported crypto cipher suits to be advertised to cfg80211 */
static const u32 mwifiex_cipher_suites[] = {
WLAN_CIPHER_SUITE_WEP40,
WLAN_CIPHER_SUITE_WEP104,
WLAN_CIPHER_SUITE_TKIP,
WLAN_CIPHER_SUITE_CCMP,
WLAN_CIPHER_SUITE_AES_CMAC,
};
/* Supported mgmt frame types to be advertised to cfg80211 */
static const struct ieee80211_txrx_stypes
mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
[NL80211_IFTYPE_STATION] = {
.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
},
[NL80211_IFTYPE_AP] = {
.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
},
[NL80211_IFTYPE_P2P_CLIENT] = {
.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
},
[NL80211_IFTYPE_P2P_GO] = {
.tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
},
};
/*
* CFG802.11 operation handler for setting bit rates.
*
* Function configures data rates to firmware using bitrate mask
* provided by cfg80211.
*/
static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
struct net_device *dev,
const u8 *peer,
const struct cfg80211_bitrate_mask *mask)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
enum ieee80211_band band;
struct mwifiex_adapter *adapter = priv->adapter;
if (!priv->media_connected) {
dev_err(adapter->dev,
"Can not set Tx data rate in disconnected state\n");
return -EINVAL;
}
band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
memset(bitmap_rates, 0, sizeof(bitmap_rates));
/* Fill HR/DSSS rates. */
if (band == IEEE80211_BAND_2GHZ)
bitmap_rates[0] = mask->control[band].legacy & 0x000f;
/* Fill OFDM rates */
if (band == IEEE80211_BAND_2GHZ)
bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
else
bitmap_rates[1] = mask->control[band].legacy;
/* Fill HT MCS rates */
bitmap_rates[2] = mask->control[band].ht_mcs[0];
if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
/* Fill VHT MCS rates */
if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
bitmap_rates[10] = mask->control[band].vht_mcs[0];
if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
bitmap_rates[11] = mask->control[band].vht_mcs[1];
}
return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
}
/*
* CFG802.11 operation handler for connection quality monitoring.
*
* This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
* events to FW.
*/
static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
struct net_device *dev,
s32 rssi_thold, u32 rssi_hyst)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
struct mwifiex_ds_misc_subsc_evt subsc_evt;
priv->cqm_rssi_thold = rssi_thold;
priv->cqm_rssi_hyst = rssi_hyst;
memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
/* Subscribe/unsubscribe low and high rssi events */
if (rssi_thold && rssi_hyst) {
subsc_evt.action = HostCmd_ACT_BITWISE_SET;
subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
return mwifiex_send_cmd(priv,
HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
0, 0, &subsc_evt, true);
} else {
subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
return mwifiex_send_cmd(priv,
HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
0, 0, &subsc_evt, true);
}
return 0;
}
/* cfg80211 operation handler for change_beacon.
* Function retrieves and sets modified management IEs to FW.
*/
static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_beacon_data *data)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
return -EINVAL;
}
if (!priv->bss_started) {
wiphy_err(wiphy, "%s: bss not started\n", __func__);
return -EINVAL;
}
if (mwifiex_set_mgmt_ies(priv, data)) {
wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
return -EFAULT;
}
return 0;
}
/* cfg80211 operation handler for del_station.
* Function deauthenticates station which value is provided in mac parameter.
* If mac is NULL/broadcast, all stations in associated station list are
* deauthenticated. If bss is not started or there are no stations in
* associated stations list, no action is taken.
*/
static int
mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
struct station_del_parameters *params)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
struct mwifiex_sta_node *sta_node;
u8 deauth_mac[ETH_ALEN];
unsigned long flags;
if (list_empty(&priv->sta_list) || !priv->bss_started)
return 0;
if (!params->mac || is_broadcast_ether_addr(params->mac))
return 0;
wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, params->mac);
eth_zero_addr(deauth_mac);
spin_lock_irqsave(&priv->sta_list_spinlock, flags);
sta_node = mwifiex_get_sta_entry(priv, params->mac);
if (sta_node)
ether_addr_copy(deauth_mac, params->mac);
spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
if (is_valid_ether_addr(deauth_mac)) {
if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
HostCmd_ACT_GEN_SET, 0,
deauth_mac, true))
return -1;
}
return 0;
}
static int
mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
{
struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
struct mwifiex_private *priv = mwifiex_get_priv(adapter,
MWIFIEX_BSS_ROLE_ANY);
struct mwifiex_ds_ant_cfg ant_cfg;
if (!tx_ant || !rx_ant)
return -EOPNOTSUPP;
if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
/* Not a MIMO chip. User should provide specific antenna number
* for Tx/Rx path or enable all antennas for diversity
*/
if (tx_ant != rx_ant)
return -EOPNOTSUPP;
if ((tx_ant & (tx_ant - 1)) &&
(tx_ant != BIT(adapter->number_of_antenna) - 1))
return -EOPNOTSUPP;
if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
(priv->adapter->number_of_antenna > 1)) {
tx_ant = RF_ANTENNA_AUTO;
rx_ant = RF_ANTENNA_AUTO;
}
} else {
struct ieee80211_sta_ht_cap *ht_info;
int rx_mcs_supp;
enum ieee80211_band band;
if ((tx_ant == 0x1 && rx_ant == 0x1)) {
adapter->user_dev_mcs_support = HT_STREAM_1X1;
if (adapter->is_hw_11ac_capable)
adapter->usr_dot_11ac_mcs_support =
MWIFIEX_11AC_MCS_MAP_1X1;
} else {
adapter->user_dev_mcs_support = HT_STREAM_2X2;
if (adapter->is_hw_11ac_capable)
adapter->usr_dot_11ac_mcs_support =
MWIFIEX_11AC_MCS_MAP_2X2;
}
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (!adapter->wiphy->bands[band])
continue;
ht_info = &adapter->wiphy->bands[band]->ht_cap;
rx_mcs_supp =
GET_RXMCSSUPP(adapter->user_dev_mcs_support);
memset(&ht_info->mcs, 0, adapter->number_of_antenna);
memset(&ht_info->mcs, 0xff, rx_mcs_supp);
}
}
ant_cfg.tx_ant = tx_ant;
ant_cfg.rx_ant = rx_ant;
return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
}
/* cfg80211 operation handler for stop ap.
* Function stops BSS running at uAP interface.
*/
static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
mwifiex_abort_cac(priv);
if (mwifiex_del_mgmt_ies(priv))
wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
priv->ap_11n_enabled = 0;
memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
HostCmd_ACT_GEN_SET, 0, NULL, true)) {
wiphy_err(wiphy, "Failed to stop the BSS\n");
return -1;
}
return 0;
}
/* cfg80211 operation handler for start_ap.
* Function sets beacon period, DTIM period, SSID and security into
* AP config structure.
* AP is configured with these settings and BSS is started.
*/
static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_ap_settings *params)
{
struct mwifiex_uap_bss_param *bss_cfg;
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
return -1;
bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
if (!bss_cfg)
return -ENOMEM;
mwifiex_set_sys_config_invalid_data(bss_cfg);
if (params->beacon_interval)
bss_cfg->beacon_period = params->beacon_interval;
if (params->dtim_period)
bss_cfg->dtim_period = params->dtim_period;
if (params->ssid && params->ssid_len) {
memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
bss_cfg->ssid.ssid_len = params->ssid_len;
}
if (params->inactivity_timeout > 0) {
/* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
}
switch (params->hidden_ssid) {
case NL80211_HIDDEN_SSID_NOT_IN_USE:
bss_cfg->bcast_ssid_ctl = 1;
break;
case NL80211_HIDDEN_SSID_ZERO_LEN:
bss_cfg->bcast_ssid_ctl = 0;
break;
case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
/* firmware doesn't support this type of hidden SSID */
default:
kfree(bss_cfg);
return -EINVAL;
}
mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
mwifiex_set_uap_rates(bss_cfg, params);
if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
kfree(bss_cfg);
wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
return -1;
}
mwifiex_set_ht_params(priv, bss_cfg, params);
if (priv->adapter->is_hw_11ac_capable) {
mwifiex_set_vht_params(priv, bss_cfg, params);
mwifiex_set_vht_width(priv, params->chandef.width,
priv->ap_11ac_enabled);
}
if (priv->ap_11ac_enabled)
mwifiex_set_11ac_ba_params(priv);
else
mwifiex_set_ba_params(priv);
mwifiex_set_wmm_params(priv, bss_cfg, params);
if (mwifiex_is_11h_active(priv) &&
!cfg80211_chandef_dfs_required(wiphy, &params->chandef,
priv->bss_mode)) {
dev_dbg(priv->adapter->dev, "Disable 11h extensions in FW\n");
if (mwifiex_11h_activate(priv, false)) {
dev_err(priv->adapter->dev,
"Failed to disable 11h extensions!!");
return -1;
}
priv->state_11h.is_11h_active = true;
}
if (mwifiex_config_start_uap(priv, bss_cfg)) {
wiphy_err(wiphy, "Failed to start AP\n");
kfree(bss_cfg);
return -1;
}
if (mwifiex_set_mgmt_ies(priv, &params->beacon))
return -1;
memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
kfree(bss_cfg);
return 0;
}
/*
* CFG802.11 operation handler for disconnection request.
*
* This function does not work when there is already a disconnection
* procedure going on.
*/
static int
mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
u16 reason_code)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
if (mwifiex_deauthenticate(priv, NULL))
return -EFAULT;
wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
" reason code %d\n", priv->cfg_bssid, reason_code);
eth_zero_addr(priv->cfg_bssid);
priv->hs2_enabled = false;
return 0;
}
/*
* This function informs the CFG802.11 subsystem of a new IBSS.
*
* The following information are sent to the CFG802.11 subsystem
* to register the new IBSS. If we do not register the new IBSS,
* a kernel panic will result.
* - SSID
* - SSID length
* - BSSID
* - Channel
*/
static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
{
struct ieee80211_channel *chan;
struct mwifiex_bss_info bss_info;
struct cfg80211_bss *bss;
int ie_len;
u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
enum ieee80211_band band;
if (mwifiex_get_bss_info(priv, &bss_info))
return -1;
ie_buf[0] = WLAN_EID_SSID;
ie_buf[1] = bss_info.ssid.ssid_len;
memcpy(&ie_buf[sizeof(struct ieee_types_header)],
&bss_info.ssid.ssid, bss_info.ssid.ssid_len);
ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
chan = __ieee80211_get_channel(priv->wdev.wiphy,
ieee80211_channel_to_frequency(bss_info.bss_chan,
band));
bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
CFG80211_BSS_FTYPE_UNKNOWN,
bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
0, ie_buf, ie_len, 0, GFP_KERNEL);
cfg80211_put_bss(priv->wdev.wiphy, bss);
memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
return 0;
}
/*
* This function connects with a BSS.
*
* This function handles both Infra and Ad-Hoc modes. It also performs
* validity checking on the provided parameters, disconnects from the
* current BSS (if any), sets up the association/scan parameters,
* including security settings, and performs specific SSID scan before
* trying to connect.
*
* For Infra mode, the function returns failure if the specified SSID
* is not found in scan table. However, for Ad-Hoc mode, it can create
* the IBSS if it does not exist. On successful completion in either case,
* the function notifies the CFG802.11 subsystem of the new BSS connection.
*/
static int
mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
const u8 *ssid, const u8 *bssid, int mode,
struct ieee80211_channel *channel,
struct cfg80211_connect_params *sme, bool privacy)
{
struct cfg80211_ssid req_ssid;
int ret, auth_type = 0;
struct cfg80211_bss *bss = NULL;
u8 is_scanning_required = 0;
memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
req_ssid.ssid_len = ssid_len;
if (ssid_len > IEEE80211_MAX_SSID_LEN) {
dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
return -EINVAL;
}
memcpy(req_ssid.ssid, ssid, ssid_len);
if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
return -EINVAL;
}
/* As this is new association, clear locally stored
* keys and security related flags */
priv->sec_info.wpa_enabled = false;
priv->sec_info.wpa2_enabled = false;
priv->wep_key_curr_index = 0;
priv->sec_info.encryption_mode = 0;
priv->sec_info.is_authtype_auto = 0;
ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
if (mode == NL80211_IFTYPE_ADHOC) {
/* "privacy" is set only for ad-hoc mode */
if (privacy) {
/*
* Keep WLAN_CIPHER_SUITE_WEP104 for now so that
* the firmware can find a matching network from the
* scan. The cfg80211 does not give us the encryption
* mode at this stage so just setting it to WEP here.
*/
priv->sec_info.encryption_mode =
WLAN_CIPHER_SUITE_WEP104;
priv->sec_info.authentication_mode =
NL80211_AUTHTYPE_OPEN_SYSTEM;
}
goto done;
}
/* Now handle infra mode. "sme" is valid for infra mode only */
if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
priv->sec_info.is_authtype_auto = 1;
} else {
auth_type = sme->auth_type;
}
if (sme->crypto.n_ciphers_pairwise) {
priv->sec_info.encryption_mode =
sme->crypto.ciphers_pairwise[0];
priv->sec_info.authentication_mode = auth_type;
}
if (sme->crypto.cipher_group) {
priv->sec_info.encryption_mode = sme->crypto.cipher_group;
priv->sec_info.authentication_mode = auth_type;
}
if (sme->ie)
ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
if (sme->key) {
if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
dev_dbg(priv->adapter->dev,
"info: setting wep encryption"
" with key len %d\n", sme->key_len);
priv->wep_key_curr_index = sme->key_idx;
ret = mwifiex_set_encode(priv, NULL, sme->key,
sme->key_len, sme->key_idx,
NULL, 0);
}
}
done:
/*
* Scan entries are valid for some time (15 sec). So we can save one
* active scan time if we just try cfg80211_get_bss first. If it fails
* then request scan and cfg80211_get_bss() again for final output.
*/
while (1) {
if (is_scanning_required) {
/* Do specific SSID scanning */
if (mwifiex_request_scan(priv, &req_ssid)) {
dev_err(priv->adapter->dev, "scan error\n");
return -EFAULT;
}
}
/* Find the BSS we want using available scan results */
if (mode == NL80211_IFTYPE_ADHOC)
bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
bssid, ssid, ssid_len,
IEEE80211_BSS_TYPE_IBSS,
IEEE80211_PRIVACY_ANY);
else
bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
bssid, ssid, ssid_len,
IEEE80211_BSS_TYPE_ESS,
IEEE80211_PRIVACY_ANY);
if (!bss) {
if (is_scanning_required) {
dev_warn(priv->adapter->dev,
"assoc: requested bss not found in scan results\n");
break;
}
is_scanning_required = 1;
} else {
dev_dbg(priv->adapter->dev,
"info: trying to associate to '%s' bssid %pM\n",
(char *) req_ssid.ssid, bss->bssid);
memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
break;
}
}
ret = mwifiex_bss_start(priv, bss, &req_ssid);
if (ret)
return ret;
if (mode == NL80211_IFTYPE_ADHOC) {
/* Inform the BSS information to kernel, otherwise
* kernel will give a panic after successful assoc */
if (mwifiex_cfg80211_inform_ibss_bss(priv))
return -EFAULT;
}
return ret;
}
/*
* CFG802.11 operation handler for association request.
*
* This function does not work when the current mode is set to Ad-Hoc, or
* when there is already an association procedure going on. The given BSS
* information is used to associate.
*/
static int
mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_connect_params *sme)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
struct mwifiex_adapter *adapter = priv->adapter;
int ret;
if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
wiphy_err(wiphy,
"%s: reject infra assoc request in non-STA role\n",
dev->name);
return -EINVAL;
}
if (priv->wdev.current_bss) {
wiphy_warn(wiphy, "%s: already connected\n", dev->name);
return -EALREADY;
}
if (adapter->surprise_removed || adapter->is_cmd_timedout) {
wiphy_err(wiphy,
"%s: Ignore connection. Card removed or FW in bad state\n",
dev->name);
return -EFAULT;
}
wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
(char *) sme->ssid, sme->bssid);
ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
priv->bss_mode, sme->channel, sme, 0);
if (!ret) {
cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
NULL, 0, WLAN_STATUS_SUCCESS,
GFP_KERNEL);
dev_dbg(priv->adapter->dev,
"info: associated to bssid %pM successfully\n",
priv->cfg_bssid);
if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
priv->adapter->auto_tdls &&
priv->bss_type == MWIFIEX_BSS_TYPE_STA)
mwifiex_setup_auto_tdls_timer(priv);
} else {
dev_dbg(priv->adapter->dev,
"info: association to bssid %pM failed\n",
priv->cfg_bssid);
eth_zero_addr(priv->cfg_bssid);
if (ret > 0)
cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
NULL, 0, NULL, 0, ret,
GFP_KERNEL);
else
cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
NULL, 0, NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE,
GFP_KERNEL);
}
return 0;
}
/*
* This function sets following parameters for ibss network.
* - channel
* - start band
* - 11n flag
* - secondary channel offset
*/
static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
struct cfg80211_ibss_params *params)
{
struct wiphy *wiphy = priv->wdev.wiphy;
struct mwifiex_adapter *adapter = priv->adapter;
int index = 0, i;
u8 config_bands = 0;
if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
if (!params->basic_rates) {
config_bands = BAND_B | BAND_G;
} else {
for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
/*
* Rates below 6 Mbps in the table are CCK
* rates; 802.11b and from 6 they are OFDM;
* 802.11G
*/
if (mwifiex_rates[i].bitrate == 60) {
index = 1 << i;
break;
}
}
if (params->basic_rates < index) {
config_bands = BAND_B;
} else {
config_bands = BAND_G;
if (params->basic_rates % index)
config_bands |= BAND_B;
}
}
if (cfg80211_get_chandef_type(&params->chandef) !=
NL80211_CHAN_NO_HT)
config_bands |= BAND_G | BAND_GN;
} else {
if (cfg80211_get_chandef_type(&params->chandef) ==
NL80211_CHAN_NO_HT)
config_bands = BAND_A;
else
config_bands = BAND_AN | BAND_A;
}
if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
adapter->config_bands = config_bands;
adapter->adhoc_start_band = config_bands;
if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
adapter->adhoc_11n_enabled = true;
else
adapter->adhoc_11n_enabled = false;
}
adapter->sec_chan_offset =
mwifiex_chan_type_to_sec_chan_offset(
cfg80211_get_chandef_type(&params->chandef));
priv->adhoc_channel = ieee80211_frequency_to_channel(
params->chandef.chan->center_freq);
wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
return 0;
}
/*
* CFG802.11 operation handler to join an IBSS.
*
* This function does not work in any mode other than Ad-Hoc, or if
* a join operation is already in progress.
*/
static int
mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ibss_params *params)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int ret = 0;
if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
wiphy_err(wiphy, "request to join ibss received "
"when station is not in ibss mode\n");
goto done;
}
wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
(char *) params->ssid, params->bssid);
mwifiex_set_ibss_params(priv, params);
ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
params->bssid, priv->bss_mode,
params->chandef.chan, NULL,
params->privacy);
done:
if (!ret) {
cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
params->chandef.chan, GFP_KERNEL);
dev_dbg(priv->adapter->dev,
"info: joined/created adhoc network with bssid"
" %pM successfully\n", priv->cfg_bssid);
} else {
dev_dbg(priv->adapter->dev,
"info: failed creating/joining adhoc network\n");
}
return ret;
}
/*
* CFG802.11 operation handler to leave an IBSS.
*
* This function does not work if a leave operation is
* already in progress.
*/
static int
mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
priv->cfg_bssid);
if (mwifiex_deauthenticate(priv, NULL))
return -EFAULT;
eth_zero_addr(priv->cfg_bssid);
return 0;
}
/*
* CFG802.11 operation handler for scan request.
*
* This function issues a scan request to the firmware based upon
* the user specified scan configuration. On successfull completion,
* it also informs the results.
*/
static int
mwifiex_cfg80211_scan(struct wiphy *wiphy,
struct cfg80211_scan_request *request)
{
struct net_device *dev = request->wdev->netdev;
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
int i, offset, ret;
struct ieee80211_channel *chan;
struct ieee_types_header *ie;
struct mwifiex_user_scan_cfg *user_scan_cfg;
wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
/* Block scan request if scan operation or scan cleanup when interface
* is disabled is in process
*/
if (priv->scan_request || priv->scan_aborting) {
dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
return -EBUSY;
}
user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
if (!user_scan_cfg)
return -ENOMEM;
priv->scan_request = request;
user_scan_cfg->num_ssids = request->n_ssids;
user_scan_cfg->ssid_list = request->ssids;
if (request->ie && request->ie_len) {
offset = 0;
for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
continue;
priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
ie = (struct ieee_types_header *)(request->ie + offset);
memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
offset += sizeof(*ie) + ie->len;
if (offset >= request->ie_len)
break;
}
}
for (i = 0; i < min_t(u32, request->n_channels,
MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
chan = request->channels[i];
user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
user_scan_cfg->chan_list[i].radio_type = chan->band;
if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
user_scan_cfg->chan_list[i].scan_type =
MWIFIEX_SCAN_TYPE_PASSIVE;
else
user_scan_cfg->chan_list[i].scan_type =
MWIFIEX_SCAN_TYPE_ACTIVE;
user_scan_cfg->chan_list[i].scan_time = 0;
}
if (priv->adapter->scan_chan_gap_enabled &&
mwifiex_is_any_intf_active(priv))
user_scan_cfg->scan_chan_gap =
priv->adapter->scan_chan_gap_time;
ret = mwifiex_scan_networks(priv, user_scan_cfg);
kfree(user_scan_cfg);
if (ret) {
dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
priv->scan_aborting = false;
priv->scan_request = NULL;
return ret;
}
if (request->ie && request->ie_len) {
for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
memset(&priv->vs_ie[i].ie, 0,
MWIFIEX_MAX_VSIE_LEN);
}
}
}
return 0;
}
static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
struct mwifiex_private *priv)
{
struct mwifiex_adapter *adapter = priv->adapter;
vht_info->vht_supported = true;
vht_info->cap = adapter->hw_dot_11ac_dev_cap;
/* Update MCS support for VHT */
vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
adapter->hw_dot_11ac_mcs_support & 0xFFFF);
vht_info->vht_mcs.rx_highest = 0;
vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
adapter->hw_dot_11ac_mcs_support >> 16);
vht_info->vht_mcs.tx_highest = 0;
}
/*
* This function sets up the CFG802.11 specific HT capability fields
* with default values.
*
* The following default values are set -
* - HT Supported = True
* - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
* - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
* - HT Capabilities supported by firmware
* - MCS information, Rx mask = 0xff
* - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
*/
static void
mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
struct mwifiex_private *priv)
{
int rx_mcs_supp;
struct ieee80211_mcs_info mcs_set;
u8 *mcs = (u8 *)&mcs_set;
struct mwifiex_adapter *adapter = priv->adapter;
ht_info->ht_supported = true;
ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
/* Fill HT capability information */
if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
else
ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
else
ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
else
ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
else
ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
else
ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
else
ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
else
ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
else
ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
/* Set MCS for 1x1/2x2 */
memset(mcs, 0xff, rx_mcs_supp);
/* Clear all the other values */
memset(&mcs[rx_mcs_supp], 0,
sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
if (priv->bss_mode == NL80211_IFTYPE_STATION ||
ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
/* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
SETHT_MCS32(mcs_set.rx_mask);
memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
}
/*
* create a new virtual interface with the given name and name assign type
*/
struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
const char *name,
unsigned char name_assign_type,
enum nl80211_iftype type,
u32 *flags,
struct vif_params *params)
{
struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
struct mwifiex_private *priv;
struct net_device *dev;
void *mdev_priv;
if (!adapter)
return ERR_PTR(-EFAULT);
switch (type) {
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
if (adapter->curr_iface_comb.sta_intf ==
adapter->iface_limit.sta_intf) {
wiphy_err(wiphy,
"cannot create multiple sta/adhoc ifaces\n");
return ERR_PTR(-EINVAL);
}
priv = mwifiex_get_unused_priv(adapter);
if (!priv) {
wiphy_err(wiphy,
"could not get free private struct\n");
return ERR_PTR(-EFAULT);
}
priv->wdev.wiphy = wiphy;
priv->wdev.iftype = NL80211_IFTYPE_STATION;
if (type == NL80211_IFTYPE_UNSPECIFIED)
priv->bss_mode = NL80211_IFTYPE_STATION;
else
priv->bss_mode = type;
priv->bss_type = MWIFIEX_BSS_TYPE_STA;
priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
priv->bss_priority = 0;
priv->bss_role = MWIFIEX_BSS_ROLE_STA;
priv->bss_num = 0;
break;
case NL80211_IFTYPE_AP:
if (adapter->curr_iface_comb.uap_intf ==
adapter->iface_limit.uap_intf) {
wiphy_err(wiphy,
"cannot create multiple AP ifaces\n");
return ERR_PTR(-EINVAL);
}
priv = mwifiex_get_unused_priv(adapter);
if (!priv) {
wiphy_err(wiphy,
"could not get free private struct\n");
return ERR_PTR(-EFAULT);
}
priv->wdev.wiphy = wiphy;
priv->wdev.iftype = NL80211_IFTYPE_AP;
priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
priv->bss_priority = 0;
priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
priv->bss_started = 0;
priv->bss_num = 0;
priv->bss_mode = type;
break;
case NL80211_IFTYPE_P2P_CLIENT:
if (adapter->curr_iface_comb.p2p_intf ==
adapter->iface_limit.p2p_intf) {
wiphy_err(wiphy,
"cannot create multiple P2P ifaces\n");
return ERR_PTR(-EINVAL);
}
priv = mwifiex_get_unused_priv(adapter);
if (!priv) {
wiphy_err(wiphy,
"could not get free private struct\n");
return ERR_PTR(-EFAULT);
}
priv->wdev.wiphy = wiphy;
/* At start-up, wpa_supplicant tries to change the interface
* to NL80211_IFTYPE_STATION if it is not managed mode.
*/
priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
/* 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;
if (mwifiex_cfg80211_init_p2p_client(priv)) {
memset(&priv->wdev, 0, sizeof(priv->wdev));
priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
return ERR_PTR(-EFAULT);
}
break;
default:
wiphy_err(wiphy, "type not supported\n");
return ERR_PTR(-EINVAL);
}
dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
name_assign_type, ether_setup,
IEEE80211_NUM_ACS, 1);
if (!dev) {
wiphy_err(wiphy, "no memory available for netdevice\n");
memset(&priv->wdev, 0, sizeof(priv->wdev));
priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
return ERR_PTR(-ENOMEM);
}
mwifiex_init_priv_params(priv, dev);
priv->netdev = dev;
mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
if (adapter->is_hw_11ac_capable)
mwifiex_setup_vht_caps(
&wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
if (adapter->config_bands & BAND_A)
mwifiex_setup_ht_caps(
&wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
mwifiex_setup_vht_caps(
&wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
dev_net_set(dev, wiphy_net(wiphy));
dev->ieee80211_ptr = &priv->wdev;
dev->ieee80211_ptr->iftype = priv->bss_mode;
memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
dev->ethtool_ops = &mwifiex_ethtool_ops;
mdev_priv = netdev_priv(dev);
*((unsigned long *) mdev_priv) = (unsigned long) priv;
SET_NETDEV_DEV(dev, adapter->dev);
/* Register network device */
if (register_netdevice(dev)) {
wiphy_err(wiphy, "cannot register virtual network device\n");
free_netdev(dev);
priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
priv->netdev = NULL;
memset(&priv->wdev, 0, sizeof(priv->wdev));
priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
return ERR_PTR(-EFAULT);
}
priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
WQ_HIGHPRI |
WQ_MEM_RECLAIM |
WQ_UNBOUND, 1, name);
if (!priv->dfs_cac_workqueue) {
wiphy_err(wiphy, "cannot register virtual network device\n");
free_netdev(dev);
priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
priv->netdev = NULL;
memset(&priv->wdev, 0, sizeof(priv->wdev));
priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
return ERR_PTR(-ENOMEM);
}
INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
WQ_HIGHPRI | WQ_UNBOUND |
WQ_MEM_RECLAIM, 1, name);