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linux_dsm_epyc7002/drivers/net/wireless/rsi/rsi_91x_mac80211.c
Johannes Berg 2ce113de31 mac80211: simplify TX aggregation start 
There really is no need to make drivers call the
ieee80211_start_tx_ba_cb_irqsafe() function and then
schedule the worker if all we want is to set a bit.

Add a new return value (that was previously considered
invalid) to indicate that the driver is immediately
ready for the session, and make drivers use it. The
only drivers that remain different are the Intel ones
as they need to negotiate more with the firmware.

Link: https://lore.kernel.org/r/1570007543-I152912660131cbab2e5d80b4218238c20f8a06e5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-04 13:58:13 +02:00

2118 lines
57 KiB
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/**
* Copyright (c) 2014 Redpine Signals Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/etherdevice.h>
#include "rsi_debugfs.h"
#include "rsi_mgmt.h"
#include "rsi_sdio.h"
#include "rsi_common.h"
#include "rsi_ps.h"
static const struct ieee80211_channel rsi_2ghz_channels[] = {
{ .band = NL80211_BAND_2GHZ, .center_freq = 2412,
.hw_value = 1 }, /* Channel 1 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2417,
.hw_value = 2 }, /* Channel 2 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2422,
.hw_value = 3 }, /* Channel 3 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2427,
.hw_value = 4 }, /* Channel 4 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2432,
.hw_value = 5 }, /* Channel 5 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2437,
.hw_value = 6 }, /* Channel 6 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2442,
.hw_value = 7 }, /* Channel 7 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2447,
.hw_value = 8 }, /* Channel 8 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2452,
.hw_value = 9 }, /* Channel 9 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2457,
.hw_value = 10 }, /* Channel 10 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2462,
.hw_value = 11 }, /* Channel 11 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2467,
.hw_value = 12 }, /* Channel 12 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2472,
.hw_value = 13 }, /* Channel 13 */
{ .band = NL80211_BAND_2GHZ, .center_freq = 2484,
.hw_value = 14 }, /* Channel 14 */
};
static const struct ieee80211_channel rsi_5ghz_channels[] = {
{ .band = NL80211_BAND_5GHZ, .center_freq = 5180,
.hw_value = 36, }, /* Channel 36 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5200,
.hw_value = 40, }, /* Channel 40 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5220,
.hw_value = 44, }, /* Channel 44 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5240,
.hw_value = 48, }, /* Channel 48 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5260,
.hw_value = 52, }, /* Channel 52 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5280,
.hw_value = 56, }, /* Channel 56 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5300,
.hw_value = 60, }, /* Channel 60 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5320,
.hw_value = 64, }, /* Channel 64 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5500,
.hw_value = 100, }, /* Channel 100 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5520,
.hw_value = 104, }, /* Channel 104 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5540,
.hw_value = 108, }, /* Channel 108 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5560,
.hw_value = 112, }, /* Channel 112 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5580,
.hw_value = 116, }, /* Channel 116 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5600,
.hw_value = 120, }, /* Channel 120 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5620,
.hw_value = 124, }, /* Channel 124 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5640,
.hw_value = 128, }, /* Channel 128 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5660,
.hw_value = 132, }, /* Channel 132 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5680,
.hw_value = 136, }, /* Channel 136 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5700,
.hw_value = 140, }, /* Channel 140 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5745,
.hw_value = 149, }, /* Channel 149 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5765,
.hw_value = 153, }, /* Channel 153 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5785,
.hw_value = 157, }, /* Channel 157 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5805,
.hw_value = 161, }, /* Channel 161 */
{ .band = NL80211_BAND_5GHZ, .center_freq = 5825,
.hw_value = 165, }, /* Channel 165 */
};
struct ieee80211_rate rsi_rates[12] = {
{ .bitrate = STD_RATE_01 * 5, .hw_value = RSI_RATE_1 },
{ .bitrate = STD_RATE_02 * 5, .hw_value = RSI_RATE_2 },
{ .bitrate = STD_RATE_5_5 * 5, .hw_value = RSI_RATE_5_5 },
{ .bitrate = STD_RATE_11 * 5, .hw_value = RSI_RATE_11 },
{ .bitrate = STD_RATE_06 * 5, .hw_value = RSI_RATE_6 },
{ .bitrate = STD_RATE_09 * 5, .hw_value = RSI_RATE_9 },
{ .bitrate = STD_RATE_12 * 5, .hw_value = RSI_RATE_12 },
{ .bitrate = STD_RATE_18 * 5, .hw_value = RSI_RATE_18 },
{ .bitrate = STD_RATE_24 * 5, .hw_value = RSI_RATE_24 },
{ .bitrate = STD_RATE_36 * 5, .hw_value = RSI_RATE_36 },
{ .bitrate = STD_RATE_48 * 5, .hw_value = RSI_RATE_48 },
{ .bitrate = STD_RATE_54 * 5, .hw_value = RSI_RATE_54 },
};
const u16 rsi_mcsrates[8] = {
RSI_RATE_MCS0, RSI_RATE_MCS1, RSI_RATE_MCS2, RSI_RATE_MCS3,
RSI_RATE_MCS4, RSI_RATE_MCS5, RSI_RATE_MCS6, RSI_RATE_MCS7
};
static const u32 rsi_max_ap_stas[16] = {
32, /* 1 - Wi-Fi alone */
0, /* 2 */
0, /* 3 */
0, /* 4 - BT EDR alone */
4, /* 5 - STA + BT EDR */
32, /* 6 - AP + BT EDR */
0, /* 7 */
0, /* 8 - BT LE alone */
4, /* 9 - STA + BE LE */
0, /* 10 */
0, /* 11 */
0, /* 12 */
1, /* 13 - STA + BT Dual */
4, /* 14 - AP + BT Dual */
};
static const struct ieee80211_iface_limit rsi_iface_limits[] = {
{
.max = 1,
.types = BIT(NL80211_IFTYPE_STATION),
},
{
.max = 1,
.types = BIT(NL80211_IFTYPE_AP) |
BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_P2P_GO),
},
{
.max = 1,
.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
},
};
static const struct ieee80211_iface_combination rsi_iface_combinations[] = {
{
.num_different_channels = 1,
.max_interfaces = 3,
.limits = rsi_iface_limits,
.n_limits = ARRAY_SIZE(rsi_iface_limits),
},
};
/**
* rsi_is_cipher_wep() - This function determines if the cipher is WEP or not.
* @common: Pointer to the driver private structure.
*
* Return: If cipher type is WEP, a value of 1 is returned, else 0.
*/
bool rsi_is_cipher_wep(struct rsi_common *common)
{
if (((common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP104) ||
(common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP40)) &&
(!common->secinfo.ptk_cipher))
return true;
else
return false;
}
/**
* rsi_register_rates_channels() - This function registers channels and rates.
* @adapter: Pointer to the adapter structure.
* @band: Operating band to be set.
*
* Return: int - 0 on success, negative error on failure.
*/
static int rsi_register_rates_channels(struct rsi_hw *adapter, int band)
{
struct ieee80211_supported_band *sbands = &adapter->sbands[band];
void *channels = NULL;
if (band == NL80211_BAND_2GHZ) {
channels = kmemdup(rsi_2ghz_channels, sizeof(rsi_2ghz_channels),
GFP_KERNEL);
if (!channels)
return -ENOMEM;
sbands->band = NL80211_BAND_2GHZ;
sbands->n_channels = ARRAY_SIZE(rsi_2ghz_channels);
sbands->bitrates = rsi_rates;
sbands->n_bitrates = ARRAY_SIZE(rsi_rates);
} else {
channels = kmemdup(rsi_5ghz_channels, sizeof(rsi_5ghz_channels),
GFP_KERNEL);
if (!channels)
return -ENOMEM;
sbands->band = NL80211_BAND_5GHZ;
sbands->n_channels = ARRAY_SIZE(rsi_5ghz_channels);
sbands->bitrates = &rsi_rates[4];
sbands->n_bitrates = ARRAY_SIZE(rsi_rates) - 4;
}
sbands->channels = channels;
memset(&sbands->ht_cap, 0, sizeof(struct ieee80211_sta_ht_cap));
sbands->ht_cap.ht_supported = true;
sbands->ht_cap.cap = (IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_SGI_40);
sbands->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
sbands->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
sbands->ht_cap.mcs.rx_mask[0] = 0xff;
sbands->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
/* sbands->ht_cap.mcs.rx_highest = 0x82; */
return 0;
}
static int rsi_mac80211_hw_scan_start(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_scan_request *hw_req)
{
struct cfg80211_scan_request *scan_req = &hw_req->req;
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
struct ieee80211_bss_conf *bss = &vif->bss_conf;
rsi_dbg(INFO_ZONE, "***** Hardware scan start *****\n");
common->mac_ops_resumed = false;
if (common->fsm_state != FSM_MAC_INIT_DONE)
return -ENODEV;
if ((common->wow_flags & RSI_WOW_ENABLED) ||
scan_req->n_channels == 0)
return -EINVAL;
/* Scan already in progress. So return */
if (common->bgscan_en)
return -EBUSY;
/* If STA is not connected, return with special value 1, in order
* to start sw_scan in mac80211
*/
if (!bss->assoc)
return 1;
mutex_lock(&common->mutex);
common->hwscan = scan_req;
if (!rsi_send_bgscan_params(common, RSI_START_BGSCAN)) {
if (!rsi_send_bgscan_probe_req(common, vif)) {
rsi_dbg(INFO_ZONE, "Background scan started...\n");
common->bgscan_en = true;
}
}
mutex_unlock(&common->mutex);
return 0;
}
static void rsi_mac80211_cancel_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
struct cfg80211_scan_info info;
rsi_dbg(INFO_ZONE, "***** Hardware scan stop *****\n");
mutex_lock(&common->mutex);
if (common->bgscan_en) {
if (!rsi_send_bgscan_params(common, RSI_STOP_BGSCAN))
common->bgscan_en = false;
info.aborted = false;
ieee80211_scan_completed(adapter->hw, &info);
rsi_dbg(INFO_ZONE, "Back ground scan cancelled\n");
}
common->hwscan = NULL;
mutex_unlock(&common->mutex);
}
/**
* rsi_mac80211_detach() - This function is used to de-initialize the
* Mac80211 stack.
* @adapter: Pointer to the adapter structure.
*
* Return: None.
*/
void rsi_mac80211_detach(struct rsi_hw *adapter)
{
struct ieee80211_hw *hw = adapter->hw;
enum nl80211_band band;
if (hw) {
ieee80211_stop_queues(hw);
ieee80211_unregister_hw(hw);
ieee80211_free_hw(hw);
adapter->hw = NULL;
}
for (band = 0; band < NUM_NL80211_BANDS; band++) {
struct ieee80211_supported_band *sband =
&adapter->sbands[band];
kfree(sband->channels);
}
#ifdef CONFIG_RSI_DEBUGFS
rsi_remove_dbgfs(adapter);
kfree(adapter->dfsentry);
#endif
}
EXPORT_SYMBOL_GPL(rsi_mac80211_detach);
/**
* rsi_indicate_tx_status() - This function indicates the transmit status.
* @adapter: Pointer to the adapter structure.
* @skb: Pointer to the socket buffer structure.
* @status: Status
*
* Return: None.
*/
void rsi_indicate_tx_status(struct rsi_hw *adapter,
struct sk_buff *skb,
int status)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct skb_info *tx_params;
if (!adapter->hw) {
rsi_dbg(ERR_ZONE, "##### No MAC #####\n");
return;
}
if (!status)
info->flags |= IEEE80211_TX_STAT_ACK;
tx_params = (struct skb_info *)info->driver_data;
skb_pull(skb, tx_params->internal_hdr_size);
memset(info->driver_data, 0, IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
ieee80211_tx_status_irqsafe(adapter->hw, skb);
}
/**
* rsi_mac80211_tx() - This is the handler that 802.11 module calls for each
* transmitted frame.SKB contains the buffer starting
* from the IEEE 802.11 header.
* @hw: Pointer to the ieee80211_hw structure.
* @control: Pointer to the ieee80211_tx_control structure
* @skb: Pointer to the socket buffer structure.
*
* Return: None
*/
static void rsi_mac80211_tx(struct ieee80211_hw *hw,
struct ieee80211_tx_control *control,
struct sk_buff *skb)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
struct ieee80211_hdr *wlh = (struct ieee80211_hdr *)skb->data;
if (ieee80211_is_auth(wlh->frame_control))
common->mac_ops_resumed = false;
rsi_core_xmit(common, skb);
}
/**
* rsi_mac80211_start() - This is first handler that 802.11 module calls, since
* the driver init is complete by then, just
* returns success.
* @hw: Pointer to the ieee80211_hw structure.
*
* Return: 0 as success.
*/
static int rsi_mac80211_start(struct ieee80211_hw *hw)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
rsi_dbg(ERR_ZONE, "===> Interface UP <===\n");
mutex_lock(&common->mutex);
if (common->hibernate_resume) {
common->reinit_hw = true;
adapter->host_intf_ops->reinit_device(adapter);
wait_for_completion(&adapter->priv->wlan_init_completion);
}
common->iface_down = false;
wiphy_rfkill_start_polling(hw->wiphy);
rsi_send_rx_filter_frame(common, 0);
mutex_unlock(&common->mutex);
return 0;
}
/**
* rsi_mac80211_stop() - This is the last handler that 802.11 module calls.
* @hw: Pointer to the ieee80211_hw structure.
*
* Return: None.
*/
static void rsi_mac80211_stop(struct ieee80211_hw *hw)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
rsi_dbg(ERR_ZONE, "===> Interface DOWN <===\n");
mutex_lock(&common->mutex);
common->iface_down = true;
wiphy_rfkill_stop_polling(hw->wiphy);
/* Block all rx frames */
rsi_send_rx_filter_frame(common, 0xffff);
mutex_unlock(&common->mutex);
}
static int rsi_map_intf_mode(enum nl80211_iftype vif_type)
{
switch (vif_type) {
case NL80211_IFTYPE_STATION:
return RSI_OPMODE_STA;
case NL80211_IFTYPE_AP:
return RSI_OPMODE_AP;
case NL80211_IFTYPE_P2P_DEVICE:
return RSI_OPMODE_P2P_CLIENT;
case NL80211_IFTYPE_P2P_CLIENT:
return RSI_OPMODE_P2P_CLIENT;
case NL80211_IFTYPE_P2P_GO:
return RSI_OPMODE_P2P_GO;
default:
return RSI_OPMODE_UNSUPPORTED;
}
}
/**
* rsi_mac80211_add_interface() - This function is called when a netdevice
* attached to the hardware is enabled.
* @hw: Pointer to the ieee80211_hw structure.
* @vif: Pointer to the ieee80211_vif structure.
*
* Return: ret: 0 on success, negative error code on failure.
*/
static int rsi_mac80211_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
struct vif_priv *vif_info = (struct vif_priv *)vif->drv_priv;
enum opmode intf_mode;
enum vap_status vap_status;
int vap_idx = -1, i;
vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
mutex_lock(&common->mutex);
intf_mode = rsi_map_intf_mode(vif->type);
if (intf_mode == RSI_OPMODE_UNSUPPORTED) {
rsi_dbg(ERR_ZONE,
"%s: Interface type %d not supported\n", __func__,
vif->type);
mutex_unlock(&common->mutex);
return -EOPNOTSUPP;
}
if ((vif->type == NL80211_IFTYPE_P2P_DEVICE) ||
(vif->type == NL80211_IFTYPE_P2P_CLIENT) ||
(vif->type == NL80211_IFTYPE_P2P_GO))
common->p2p_enabled = true;
/* Get free vap index */
for (i = 0; i < RSI_MAX_VIFS; i++) {
if (!adapter->vifs[i] ||
!memcmp(vif->addr, adapter->vifs[i]->addr, ETH_ALEN)) {
vap_idx = i;
break;
}
}
if (vap_idx < 0) {
rsi_dbg(ERR_ZONE, "Reject: Max VAPs reached\n");
mutex_unlock(&common->mutex);
return -EOPNOTSUPP;
}
vif_info->vap_id = vap_idx;
adapter->vifs[vap_idx] = vif;
adapter->sc_nvifs++;
vap_status = VAP_ADD;
if (rsi_set_vap_capabilities(common, intf_mode, vif->addr,
vif_info->vap_id, vap_status)) {
rsi_dbg(ERR_ZONE, "Failed to set VAP capabilities\n");
mutex_unlock(&common->mutex);
return -EINVAL;
}
if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO)) {
rsi_send_rx_filter_frame(common, DISALLOW_BEACONS);
common->min_rate = RSI_RATE_AUTO;
for (i = 0; i < common->max_stations; i++)
common->stations[i].sta = NULL;
}
mutex_unlock(&common->mutex);
return 0;
}
/**
* rsi_mac80211_remove_interface() - This function notifies driver that an
* interface is going down.
* @hw: Pointer to the ieee80211_hw structure.
* @vif: Pointer to the ieee80211_vif structure.
*
* Return: None.
*/
static void rsi_mac80211_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
enum opmode opmode;
int i;
rsi_dbg(INFO_ZONE, "Remove Interface Called\n");
mutex_lock(&common->mutex);
if (adapter->sc_nvifs <= 0) {
mutex_unlock(&common->mutex);
return;
}
opmode = rsi_map_intf_mode(vif->type);
if (opmode == RSI_OPMODE_UNSUPPORTED) {
rsi_dbg(ERR_ZONE, "Opmode error : %d\n", opmode);
mutex_unlock(&common->mutex);
return;
}
for (i = 0; i < RSI_MAX_VIFS; i++) {
if (!adapter->vifs[i])
continue;
if (vif == adapter->vifs[i]) {
rsi_set_vap_capabilities(common, opmode, vif->addr,
i, VAP_DELETE);
adapter->sc_nvifs--;
adapter->vifs[i] = NULL;
}
}
mutex_unlock(&common->mutex);
}
/**
* rsi_channel_change() - This function is a performs the checks
* required for changing a channel and sets
* the channel accordingly.
* @hw: Pointer to the ieee80211_hw structure.
*
* Return: 0 on success, negative error code on failure.
*/
static int rsi_channel_change(struct ieee80211_hw *hw)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
int status = -EOPNOTSUPP;
struct ieee80211_channel *curchan = hw->conf.chandef.chan;
u16 channel = curchan->hw_value;
struct ieee80211_vif *vif;
struct ieee80211_bss_conf *bss;
bool assoc = false;
int i;
rsi_dbg(INFO_ZONE,
"%s: Set channel: %d MHz type: %d channel_no %d\n",
__func__, curchan->center_freq,
curchan->flags, channel);
for (i = 0; i < RSI_MAX_VIFS; i++) {
vif = adapter->vifs[i];
if (!vif)
continue;
if (vif->type == NL80211_IFTYPE_STATION) {
bss = &vif->bss_conf;
if (bss->assoc) {
assoc = true;
break;
}
}
}
if (assoc) {
if (!common->hw_data_qs_blocked &&
(rsi_get_connected_channel(vif) != channel)) {
rsi_dbg(INFO_ZONE, "blk data q %d\n", channel);
if (!rsi_send_block_unblock_frame(common, true))
common->hw_data_qs_blocked = true;
}
}
status = rsi_band_check(common, curchan);
if (!status)
status = rsi_set_channel(adapter->priv, curchan);
if (assoc) {
if (common->hw_data_qs_blocked &&
(rsi_get_connected_channel(vif) == channel)) {
rsi_dbg(INFO_ZONE, "unblk data q %d\n", channel);
if (!rsi_send_block_unblock_frame(common, false))
common->hw_data_qs_blocked = false;
}
}
return status;
}
/**
* rsi_config_power() - This function configures tx power to device
* @hw: Pointer to the ieee80211_hw structure.
*
* Return: 0 on success, negative error code on failure.
*/
static int rsi_config_power(struct ieee80211_hw *hw)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
struct ieee80211_conf *conf = &hw->conf;
if (adapter->sc_nvifs <= 0) {
rsi_dbg(ERR_ZONE, "%s: No virtual interface found\n", __func__);
return -EINVAL;
}
rsi_dbg(INFO_ZONE,
"%s: Set tx power: %d dBM\n", __func__, conf->power_level);
if (conf->power_level == common->tx_power)
return 0;
common->tx_power = conf->power_level;
return rsi_send_radio_params_update(common);
}
/**
* rsi_mac80211_config() - This function is a handler for configuration
* requests. The stack calls this function to
* change hardware configuration, e.g., channel.
* @hw: Pointer to the ieee80211_hw structure.
* @changed: Changed flags set.
*
* Return: 0 on success, negative error code on failure.
*/
static int rsi_mac80211_config(struct ieee80211_hw *hw,
u32 changed)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
struct ieee80211_conf *conf = &hw->conf;
int status = -EOPNOTSUPP;
mutex_lock(&common->mutex);
if (changed & IEEE80211_CONF_CHANGE_CHANNEL)
status = rsi_channel_change(hw);
/* tx power */
if (changed & IEEE80211_CONF_CHANGE_POWER) {
rsi_dbg(INFO_ZONE, "%s: Configuring Power\n", __func__);
status = rsi_config_power(hw);
}
/* Power save parameters */
if ((changed & IEEE80211_CONF_CHANGE_PS) &&
!common->mac_ops_resumed) {
struct ieee80211_vif *vif, *sta_vif = NULL;
unsigned long flags;
int i, set_ps = 1;
for (i = 0; i < RSI_MAX_VIFS; i++) {
vif = adapter->vifs[i];
if (!vif)
continue;
/* Don't go to power save if AP vap exists */
if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO)) {
set_ps = 0;
break;
}
if ((vif->type == NL80211_IFTYPE_STATION ||
vif->type == NL80211_IFTYPE_P2P_CLIENT) &&
(!sta_vif || vif->bss_conf.assoc))
sta_vif = vif;
}
if (set_ps && sta_vif) {
spin_lock_irqsave(&adapter->ps_lock, flags);
if (conf->flags & IEEE80211_CONF_PS)
rsi_enable_ps(adapter, sta_vif);
else
rsi_disable_ps(adapter, sta_vif);
spin_unlock_irqrestore(&adapter->ps_lock, flags);
}
}
/* RTS threshold */
if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
rsi_dbg(INFO_ZONE, "RTS threshold\n");
if ((common->rts_threshold) <= IEEE80211_MAX_RTS_THRESHOLD) {
rsi_dbg(INFO_ZONE,
"%s: Sending vap updates....\n", __func__);
status = rsi_send_vap_dynamic_update(common);
}
}
mutex_unlock(&common->mutex);
return status;
}
/**
* rsi_get_connected_channel() - This function is used to get the current
* connected channel number.
* @adapter: Pointer to the adapter structure.
*
* Return: Current connected AP's channel number is returned.
*/
u16 rsi_get_connected_channel(struct ieee80211_vif *vif)
{
struct ieee80211_bss_conf *bss;
struct ieee80211_channel *channel;
if (!vif)
return 0;
bss = &vif->bss_conf;
channel = bss->chandef.chan;
if (!channel)
return 0;
return channel->hw_value;
}
static void rsi_switch_channel(struct rsi_hw *adapter,
struct ieee80211_vif *vif)
{
struct rsi_common *common = adapter->priv;
struct ieee80211_channel *channel;
if (common->iface_down)
return;
if (!vif)
return;
channel = vif->bss_conf.chandef.chan;
if (!channel)
return;
rsi_band_check(common, channel);
rsi_set_channel(common, channel);
rsi_dbg(INFO_ZONE, "Switched to channel - %d\n", channel->hw_value);
}
/**
* rsi_mac80211_bss_info_changed() - This function is a handler for config
* requests related to BSS parameters that
* may vary during BSS's lifespan.
* @hw: Pointer to the ieee80211_hw structure.
* @vif: Pointer to the ieee80211_vif structure.
* @bss_conf: Pointer to the ieee80211_bss_conf structure.
* @changed: Changed flags set.
*
* Return: None.
*/
static void rsi_mac80211_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
u32 changed)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
struct ieee80211_bss_conf *bss = &vif->bss_conf;
struct ieee80211_conf *conf = &hw->conf;
u16 rx_filter_word = 0;
mutex_lock(&common->mutex);
if (changed & BSS_CHANGED_ASSOC) {
rsi_dbg(INFO_ZONE, "%s: Changed Association status: %d\n",
__func__, bss_conf->assoc);
if (bss_conf->assoc) {
/* Send the RX filter frame */
rx_filter_word = (ALLOW_DATA_ASSOC_PEER |
ALLOW_CTRL_ASSOC_PEER |
ALLOW_MGMT_ASSOC_PEER);
rsi_send_rx_filter_frame(common, rx_filter_word);
}
rsi_inform_bss_status(common,
RSI_OPMODE_STA,
bss_conf->assoc,
bss_conf->bssid,
bss_conf->qos,
bss_conf->aid,
NULL, 0,
bss_conf->assoc_capability, vif);
adapter->ps_info.dtim_interval_duration = bss->dtim_period;
adapter->ps_info.listen_interval = conf->listen_interval;
/* If U-APSD is updated, send ps parameters to firmware */
if (bss->assoc) {
if (common->uapsd_bitmap) {
rsi_dbg(INFO_ZONE, "Configuring UAPSD\n");
rsi_conf_uapsd(adapter, vif);
}
} else {
common->uapsd_bitmap = 0;
}
}
if (changed & BSS_CHANGED_CQM) {
common->cqm_info.last_cqm_event_rssi = 0;
common->cqm_info.rssi_thold = bss_conf->cqm_rssi_thold;
common->cqm_info.rssi_hyst = bss_conf->cqm_rssi_hyst;
rsi_dbg(INFO_ZONE, "RSSI throld & hysteresis are: %d %d\n",
common->cqm_info.rssi_thold,
common->cqm_info.rssi_hyst);
}
if ((changed & BSS_CHANGED_BEACON_ENABLED) &&
((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO))) {
if (bss->enable_beacon) {
rsi_dbg(INFO_ZONE, "===> BEACON ENABLED <===\n");
common->beacon_enabled = 1;
} else {
rsi_dbg(INFO_ZONE, "===> BEACON DISABLED <===\n");
common->beacon_enabled = 0;
}
}
mutex_unlock(&common->mutex);
}
/**
* rsi_mac80211_conf_filter() - This function configure the device's RX filter.
* @hw: Pointer to the ieee80211_hw structure.
* @changed: Changed flags set.
* @total_flags: Total initial flags set.
* @multicast: Multicast.
*
* Return: None.
*/
static void rsi_mac80211_conf_filter(struct ieee80211_hw *hw,
u32 changed_flags,
u32 *total_flags,
u64 multicast)
{
/* Not doing much here as of now */
*total_flags &= RSI_SUPP_FILTERS;
}
/**
* rsi_mac80211_conf_tx() - This function configures TX queue parameters
* (EDCF (aifs, cw_min, cw_max), bursting)
* for a hardware TX queue.
* @hw: Pointer to the ieee80211_hw structure
* @vif: Pointer to the ieee80211_vif structure.
* @queue: Queue number.
* @params: Pointer to ieee80211_tx_queue_params structure.
*
* Return: 0 on success, negative error code on failure.
*/
static int rsi_mac80211_conf_tx(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, u16 queue,
const struct ieee80211_tx_queue_params *params)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
u8 idx = 0;
if (queue >= IEEE80211_NUM_ACS)
return 0;
rsi_dbg(INFO_ZONE,
"%s: Conf queue %d, aifs: %d, cwmin: %d cwmax: %d, txop: %d\n",
__func__, queue, params->aifs,
params->cw_min, params->cw_max, params->txop);
mutex_lock(&common->mutex);
/* Map into the way the f/w expects */
switch (queue) {
case IEEE80211_AC_VO:
idx = VO_Q;
break;
case IEEE80211_AC_VI:
idx = VI_Q;
break;
case IEEE80211_AC_BE:
idx = BE_Q;
break;
case IEEE80211_AC_BK:
idx = BK_Q;
break;
default:
idx = BE_Q;
break;
}
memcpy(&common->edca_params[idx],
params,
sizeof(struct ieee80211_tx_queue_params));
if (params->uapsd)
common->uapsd_bitmap |= idx;
else
common->uapsd_bitmap &= (~idx);
mutex_unlock(&common->mutex);
return 0;
}
/**
* rsi_hal_key_config() - This function loads the keys into the firmware.
* @hw: Pointer to the ieee80211_hw structure.
* @vif: Pointer to the ieee80211_vif structure.
* @key: Pointer to the ieee80211_key_conf structure.
*
* Return: status: 0 on success, negative error codes on failure.
*/
static int rsi_hal_key_config(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_key_conf *key,
struct ieee80211_sta *sta)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_sta *rsta = NULL;
int status;
u8 key_type;
s16 sta_id = 0;
if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
key_type = RSI_PAIRWISE_KEY;
else
key_type = RSI_GROUP_KEY;
rsi_dbg(ERR_ZONE, "%s: Cipher 0x%x key_type: %d key_len: %d\n",
__func__, key->cipher, key_type, key->keylen);
if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO)) {
if (sta) {
rsta = rsi_find_sta(adapter->priv, sta->addr);
if (rsta)
sta_id = rsta->sta_id;
}
adapter->priv->key = key;
} else {
if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) ||
(key->cipher == WLAN_CIPHER_SUITE_WEP40)) {
status = rsi_hal_load_key(adapter->priv,
key->key,
key->keylen,
RSI_PAIRWISE_KEY,
key->keyidx,
key->cipher,
sta_id,
vif);
if (status)
return status;
}
}
status = rsi_hal_load_key(adapter->priv,
key->key,
key->keylen,
key_type,
key->keyidx,
key->cipher,
sta_id,
vif);
if (status)
return status;
if (vif->type == NL80211_IFTYPE_STATION &&
(key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
key->cipher == WLAN_CIPHER_SUITE_WEP40)) {
if (!rsi_send_block_unblock_frame(adapter->priv, false))
adapter->priv->hw_data_qs_blocked = false;
}
return 0;
}
/**
* rsi_mac80211_set_key() - This function sets type of key to be loaded.
* @hw: Pointer to the ieee80211_hw structure.
* @cmd: enum set_key_cmd.
* @vif: Pointer to the ieee80211_vif structure.
* @sta: Pointer to the ieee80211_sta structure.
* @key: Pointer to the ieee80211_key_conf structure.
*
* Return: status: 0 on success, negative error code on failure.
*/
static int rsi_mac80211_set_key(struct ieee80211_hw *hw,
enum set_key_cmd cmd,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct ieee80211_key_conf *key)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
struct security_info *secinfo = &common->secinfo;
int status;
mutex_lock(&common->mutex);
switch (cmd) {
case SET_KEY:
secinfo->security_enable = true;
status = rsi_hal_key_config(hw, vif, key, sta);
if (status) {
mutex_unlock(&common->mutex);
return status;
}
if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
secinfo->ptk_cipher = key->cipher;
else
secinfo->gtk_cipher = key->cipher;
key->hw_key_idx = key->keyidx;
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
rsi_dbg(ERR_ZONE, "%s: RSI set_key\n", __func__);
break;
case DISABLE_KEY:
if (vif->type == NL80211_IFTYPE_STATION)
secinfo->security_enable = false;
rsi_dbg(ERR_ZONE, "%s: RSI del key\n", __func__);
memset(key, 0, sizeof(struct ieee80211_key_conf));
status = rsi_hal_key_config(hw, vif, key, sta);
break;
default:
status = -EOPNOTSUPP;
break;
}
mutex_unlock(&common->mutex);
return status;
}
/**
* rsi_mac80211_ampdu_action() - This function selects the AMPDU action for
* the corresponding mlme_action flag and
* informs the f/w regarding this.
* @hw: Pointer to the ieee80211_hw structure.
* @vif: Pointer to the ieee80211_vif structure.
* @params: Pointer to A-MPDU action parameters
*
* Return: status: 0 on success, negative error code on failure.
*/
static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_ampdu_params *params)
{
int status = -EOPNOTSUPP;
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
struct rsi_sta *rsta = NULL;
u16 seq_no = 0, seq_start = 0;
u8 ii = 0;
struct ieee80211_sta *sta = params->sta;
u8 sta_id = 0;
enum ieee80211_ampdu_mlme_action action = params->action;
u16 tid = params->tid;
u16 *ssn = &params->ssn;
u8 buf_size = params->buf_size;
for (ii = 0; ii < RSI_MAX_VIFS; ii++) {
if (vif == adapter->vifs[ii])
break;
}
mutex_lock(&common->mutex);
if (ssn != NULL)
seq_no = *ssn;
if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO)) {
rsta = rsi_find_sta(common, sta->addr);
if (!rsta) {
rsi_dbg(ERR_ZONE, "No station mapped\n");
status = 0;
goto unlock;
}
sta_id = rsta->sta_id;
}
rsi_dbg(INFO_ZONE,
"%s: AMPDU action tid=%d ssn=0x%x, buf_size=%d sta_id=%d\n",
__func__, tid, seq_no, buf_size, sta_id);
switch (action) {
case IEEE80211_AMPDU_RX_START:
status = rsi_send_aggregation_params_frame(common,
tid,
seq_no,
buf_size,
STA_RX_ADDBA_DONE,
sta_id);
break;
case IEEE80211_AMPDU_RX_STOP:
status = rsi_send_aggregation_params_frame(common,
tid,
0,
buf_size,
STA_RX_DELBA,
sta_id);
break;
case IEEE80211_AMPDU_TX_START:
if ((vif->type == NL80211_IFTYPE_STATION) ||
(vif->type == NL80211_IFTYPE_P2P_CLIENT))
common->vif_info[ii].seq_start = seq_no;
else if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO))
rsta->seq_start[tid] = seq_no;
status = IEEE80211_AMPDU_TX_START_IMMEDIATE;
break;
case IEEE80211_AMPDU_TX_STOP_CONT:
case IEEE80211_AMPDU_TX_STOP_FLUSH:
case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
status = rsi_send_aggregation_params_frame(common,
tid,
seq_no,
buf_size,
STA_TX_DELBA,
sta_id);
if (!status)
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
if ((vif->type == NL80211_IFTYPE_STATION) ||
(vif->type == NL80211_IFTYPE_P2P_CLIENT))
seq_start = common->vif_info[ii].seq_start;
else if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO))
seq_start = rsta->seq_start[tid];
status = rsi_send_aggregation_params_frame(common,
tid,
seq_start,
buf_size,
STA_TX_ADDBA_DONE,
sta_id);
break;
default:
rsi_dbg(ERR_ZONE, "%s: Unknown AMPDU action\n", __func__);
break;
}
unlock:
mutex_unlock(&common->mutex);
return status;
}
/**
* rsi_mac80211_set_rts_threshold() - This function sets rts threshold value.
* @hw: Pointer to the ieee80211_hw structure.
* @value: Rts threshold value.
*
* Return: 0 on success.
*/
static int rsi_mac80211_set_rts_threshold(struct ieee80211_hw *hw,
u32 value)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
mutex_lock(&common->mutex);
common->rts_threshold = value;
mutex_unlock(&common->mutex);
return 0;
}
/**
* rsi_mac80211_set_rate_mask() - This function sets bitrate_mask to be used.
* @hw: Pointer to the ieee80211_hw structure
* @vif: Pointer to the ieee80211_vif structure.
* @mask: Pointer to the cfg80211_bitrate_mask structure.
*
* Return: 0 on success.
*/
static int rsi_mac80211_set_rate_mask(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
const struct cfg80211_bitrate_mask *mask)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
enum nl80211_band band = hw->conf.chandef.chan->band;
mutex_lock(&common->mutex);
common->fixedrate_mask[band] = 0;
if (mask->control[band].legacy == 0xfff) {
common->fixedrate_mask[band] =
(mask->control[band].ht_mcs[0] << 12);
} else {
common->fixedrate_mask[band] =
mask->control[band].legacy;
}
mutex_unlock(&common->mutex);
return 0;
}
/**
* rsi_perform_cqm() - This function performs cqm.
* @common: Pointer to the driver private structure.
* @bssid: pointer to the bssid.
* @rssi: RSSI value.
*/
static void rsi_perform_cqm(struct rsi_common *common,
u8 *bssid,
s8 rssi,
struct ieee80211_vif *vif)
{
s8 last_event = common->cqm_info.last_cqm_event_rssi;
int thold = common->cqm_info.rssi_thold;
u32 hyst = common->cqm_info.rssi_hyst;
enum nl80211_cqm_rssi_threshold_event event;
if (rssi < thold && (last_event == 0 || rssi < (last_event - hyst)))
event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW;
else if (rssi > thold &&
(last_event == 0 || rssi > (last_event + hyst)))
event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
else
return;
common->cqm_info.last_cqm_event_rssi = rssi;
rsi_dbg(INFO_ZONE, "CQM: Notifying event: %d\n", event);
ieee80211_cqm_rssi_notify(vif, event, rssi, GFP_KERNEL);
return;
}
/**
* rsi_fill_rx_status() - This function fills rx status in
* ieee80211_rx_status structure.
* @hw: Pointer to the ieee80211_hw structure.
* @skb: Pointer to the socket buffer structure.
* @common: Pointer to the driver private structure.
* @rxs: Pointer to the ieee80211_rx_status structure.
*
* Return: None.
*/
static void rsi_fill_rx_status(struct ieee80211_hw *hw,
struct sk_buff *skb,
struct rsi_common *common,
struct ieee80211_rx_status *rxs)
{
struct rsi_hw *adapter = common->priv;
struct ieee80211_vif *vif;
struct ieee80211_bss_conf *bss = NULL;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct skb_info *rx_params = (struct skb_info *)info->driver_data;
struct ieee80211_hdr *hdr;
char rssi = rx_params->rssi;
u8 hdrlen = 0;
u8 channel = rx_params->channel;
s32 freq;
int i;
hdr = ((struct ieee80211_hdr *)(skb->data));
hdrlen = ieee80211_hdrlen(hdr->frame_control);
memset(info, 0, sizeof(struct ieee80211_tx_info));
rxs->signal = -(rssi);
rxs->band = common->band;
freq = ieee80211_channel_to_frequency(channel, rxs->band);
if (freq)
rxs->freq = freq;
if (ieee80211_has_protected(hdr->frame_control)) {
if (rsi_is_cipher_wep(common)) {
memmove(skb->data + 4, skb->data, hdrlen);
skb_pull(skb, 4);
} else {
memmove(skb->data + 8, skb->data, hdrlen);
skb_pull(skb, 8);
rxs->flag |= RX_FLAG_MMIC_STRIPPED;
}
rxs->flag |= RX_FLAG_DECRYPTED;
rxs->flag |= RX_FLAG_IV_STRIPPED;
}
for (i = 0; i < RSI_MAX_VIFS; i++) {
vif = adapter->vifs[i];
if (!vif)
continue;
if (vif->type == NL80211_IFTYPE_STATION) {
bss = &vif->bss_conf;
break;
}
}
if (!bss)
return;
/* CQM only for connected AP beacons, the RSSI is a weighted avg */
if (bss->assoc && !(memcmp(bss->bssid, hdr->addr2, ETH_ALEN))) {
if (ieee80211_is_beacon(hdr->frame_control))
rsi_perform_cqm(common, hdr->addr2, rxs->signal, vif);
}
return;
}
/**
* rsi_indicate_pkt_to_os() - This function sends received packet to mac80211.
* @common: Pointer to the driver private structure.
* @skb: Pointer to the socket buffer structure.
*
* Return: None.
*/
void rsi_indicate_pkt_to_os(struct rsi_common *common,
struct sk_buff *skb)
{
struct rsi_hw *adapter = common->priv;
struct ieee80211_hw *hw = adapter->hw;
struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
if ((common->iface_down) || (!adapter->sc_nvifs)) {
dev_kfree_skb(skb);
return;
}
/* filling in the ieee80211_rx_status flags */
rsi_fill_rx_status(hw, skb, common, rx_status);
ieee80211_rx_irqsafe(hw, skb);
}
static void rsi_set_min_rate(struct ieee80211_hw *hw,
struct ieee80211_sta *sta,
struct rsi_common *common)
{
u8 band = hw->conf.chandef.chan->band;
u8 ii;
u32 rate_bitmap;
bool matched = false;
common->bitrate_mask[band] = sta->supp_rates[band];
rate_bitmap = (common->fixedrate_mask[band] & sta->supp_rates[band]);
if (rate_bitmap & 0xfff) {
/* Find out the min rate */
for (ii = 0; ii < ARRAY_SIZE(rsi_rates); ii++) {
if (rate_bitmap & BIT(ii)) {
common->min_rate = rsi_rates[ii].hw_value;
matched = true;
break;
}
}
}
common->vif_info[0].is_ht = sta->ht_cap.ht_supported;
if ((common->vif_info[0].is_ht) && (rate_bitmap >> 12)) {
for (ii = 0; ii < ARRAY_SIZE(rsi_mcsrates); ii++) {
if ((rate_bitmap >> 12) & BIT(ii)) {
common->min_rate = rsi_mcsrates[ii];
matched = true;
break;
}
}
}
if (!matched)
common->min_rate = 0xffff;
}
/**
* rsi_mac80211_sta_add() - This function notifies driver about a peer getting
* connected.
* @hw: pointer to the ieee80211_hw structure.
* @vif: Pointer to the ieee80211_vif structure.
* @sta: Pointer to the ieee80211_sta structure.
*
* Return: 0 on success, negative error codes on failure.
*/
static int rsi_mac80211_sta_add(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
bool sta_exist = false;
struct rsi_sta *rsta;
int status = 0;
rsi_dbg(INFO_ZONE, "Station Add: %pM\n", sta->addr);
mutex_lock(&common->mutex);
if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO)) {
u8 cnt;
int sta_idx = -1;
int free_index = -1;
/* Check if max stations reached */
if (common->num_stations >= common->max_stations) {
rsi_dbg(ERR_ZONE, "Reject: Max Stations exists\n");
status = -EOPNOTSUPP;
goto unlock;
}
for (cnt = 0; cnt < common->max_stations; cnt++) {
rsta = &common->stations[cnt];
if (!rsta->sta) {
if (free_index < 0)
free_index = cnt;
continue;
}
if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) {
rsi_dbg(INFO_ZONE, "Station exists\n");
sta_idx = cnt;
sta_exist = true;
break;
}
}
if (!sta_exist) {
if (free_index >= 0)
sta_idx = free_index;
}
if (sta_idx < 0) {
rsi_dbg(ERR_ZONE,
"%s: Some problem reaching here...\n",
__func__);
status = -EINVAL;
goto unlock;
}
rsta = &common->stations[sta_idx];
rsta->sta = sta;
rsta->sta_id = sta_idx;
for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++)
rsta->start_tx_aggr[cnt] = false;
for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++)
rsta->seq_start[cnt] = 0;
if (!sta_exist) {
rsi_dbg(INFO_ZONE, "New Station\n");
/* Send peer notify to device */
rsi_dbg(INFO_ZONE, "Indicate bss status to device\n");
rsi_inform_bss_status(common, RSI_OPMODE_AP, 1,
sta->addr, sta->wme, sta->aid,
sta, sta_idx, 0, vif);
if (common->key) {
struct ieee80211_key_conf *key = common->key;
if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) ||
(key->cipher == WLAN_CIPHER_SUITE_WEP40))
rsi_hal_load_key(adapter->priv,
key->key,
key->keylen,
RSI_PAIRWISE_KEY,
key->keyidx,
key->cipher,
sta_idx,
vif);
}
common->num_stations++;
}
}
if ((vif->type == NL80211_IFTYPE_STATION) ||
(vif->type == NL80211_IFTYPE_P2P_CLIENT)) {
rsi_set_min_rate(hw, sta, common);
if (sta->ht_cap.ht_supported) {
common->vif_info[0].is_ht = true;
common->bitrate_mask[NL80211_BAND_2GHZ] =
sta->supp_rates[NL80211_BAND_2GHZ];
if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ||
(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40))
common->vif_info[0].sgi = true;
ieee80211_start_tx_ba_session(sta, 0, 0);
}
}
unlock:
mutex_unlock(&common->mutex);
return status;
}
/**
* rsi_mac80211_sta_remove() - This function notifies driver about a peer
* getting disconnected.
* @hw: Pointer to the ieee80211_hw structure.
* @vif: Pointer to the ieee80211_vif structure.
* @sta: Pointer to the ieee80211_sta structure.
*
* Return: 0 on success, negative error codes on failure.
*/
static int rsi_mac80211_sta_remove(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
struct ieee80211_bss_conf *bss = &vif->bss_conf;
struct rsi_sta *rsta;
rsi_dbg(INFO_ZONE, "Station Remove: %pM\n", sta->addr);
mutex_lock(&common->mutex);
if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO)) {
u8 sta_idx, cnt;
/* Send peer notify to device */
rsi_dbg(INFO_ZONE, "Indicate bss status to device\n");
for (sta_idx = 0; sta_idx < common->max_stations; sta_idx++) {
rsta = &common->stations[sta_idx];
if (!rsta->sta)
continue;
if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) {
rsi_inform_bss_status(common, RSI_OPMODE_AP, 0,
sta->addr, sta->wme,
sta->aid, sta, sta_idx,
0, vif);
rsta->sta = NULL;
rsta->sta_id = -1;
for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++)
rsta->start_tx_aggr[cnt] = false;
if (common->num_stations > 0)
common->num_stations--;
break;
}
}
if (sta_idx >= common->max_stations)
rsi_dbg(ERR_ZONE, "%s: No station found\n", __func__);
}
if ((vif->type == NL80211_IFTYPE_STATION) ||
(vif->type == NL80211_IFTYPE_P2P_CLIENT)) {
/* Resetting all the fields to default values */
memcpy((u8 *)bss->bssid, (u8 *)sta->addr, ETH_ALEN);
bss->qos = sta->wme;
common->bitrate_mask[NL80211_BAND_2GHZ] = 0;
common->bitrate_mask[NL80211_BAND_5GHZ] = 0;
common->min_rate = 0xffff;
common->vif_info[0].is_ht = false;
common->vif_info[0].sgi = false;
common->vif_info[0].seq_start = 0;
common->secinfo.ptk_cipher = 0;
common->secinfo.gtk_cipher = 0;
if (!common->iface_down)
rsi_send_rx_filter_frame(common, 0);
}
mutex_unlock(&common->mutex);
return 0;
}
/**
* rsi_mac80211_set_antenna() - This function is used to configure
* tx and rx antennas.
* @hw: Pointer to the ieee80211_hw structure.
* @tx_ant: Bitmap for tx antenna
* @rx_ant: Bitmap for rx antenna
*
* Return: 0 on success, Negative error code on failure.
*/
static int rsi_mac80211_set_antenna(struct ieee80211_hw *hw,
u32 tx_ant, u32 rx_ant)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
u8 antenna = 0;
if (tx_ant > 1 || rx_ant > 1) {
rsi_dbg(ERR_ZONE,
"Invalid antenna selection (tx: %d, rx:%d)\n",
tx_ant, rx_ant);
rsi_dbg(ERR_ZONE,
"Use 0 for int_ant, 1 for ext_ant\n");
return -EINVAL;
}
rsi_dbg(INFO_ZONE, "%s: Antenna map Tx %x Rx %d\n",
__func__, tx_ant, rx_ant);
mutex_lock(&common->mutex);
antenna = tx_ant ? ANTENNA_SEL_UFL : ANTENNA_SEL_INT;
if (common->ant_in_use != antenna)
if (rsi_set_antenna(common, antenna))
goto fail_set_antenna;
rsi_dbg(INFO_ZONE, "(%s) Antenna path configured successfully\n",
tx_ant ? "UFL" : "INT");
common->ant_in_use = antenna;
mutex_unlock(&common->mutex);
return 0;
fail_set_antenna:
rsi_dbg(ERR_ZONE, "%s: Failed.\n", __func__);
mutex_unlock(&common->mutex);
return -EINVAL;
}
/**
* rsi_mac80211_get_antenna() - This function is used to configure
* tx and rx antennas.
*
* @hw: Pointer to the ieee80211_hw structure.
* @tx_ant: Bitmap for tx antenna
* @rx_ant: Bitmap for rx antenna
*
* Return: 0 on success, negative error codes on failure.
*/
static int rsi_mac80211_get_antenna(struct ieee80211_hw *hw,
u32 *tx_ant, u32 *rx_ant)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
mutex_lock(&common->mutex);
*tx_ant = (common->ant_in_use == ANTENNA_SEL_UFL) ? 1 : 0;
*rx_ant = 0;
mutex_unlock(&common->mutex);
return 0;
}
static int rsi_map_region_code(enum nl80211_dfs_regions region_code)
{
switch (region_code) {
case NL80211_DFS_FCC:
return RSI_REGION_FCC;
case NL80211_DFS_ETSI:
return RSI_REGION_ETSI;
case NL80211_DFS_JP:
return RSI_REGION_TELEC;
case NL80211_DFS_UNSET:
return RSI_REGION_WORLD;
}
return RSI_REGION_WORLD;
}
static void rsi_reg_notify(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct ieee80211_supported_band *sband;
struct ieee80211_channel *ch;
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct rsi_hw * adapter = hw->priv;
struct rsi_common *common = adapter->priv;
int i;
mutex_lock(&common->mutex);
rsi_dbg(INFO_ZONE, "country = %s dfs_region = %d\n",
request->alpha2, request->dfs_region);
if (common->num_supp_bands > 1) {
sband = wiphy->bands[NL80211_BAND_5GHZ];
for (i = 0; i < sband->n_channels; i++) {
ch = &sband->channels[i];
if (ch->flags & IEEE80211_CHAN_DISABLED)
continue;
if (ch->flags & IEEE80211_CHAN_RADAR)
ch->flags |= IEEE80211_CHAN_NO_IR;
}
}
adapter->dfs_region = rsi_map_region_code(request->dfs_region);
rsi_dbg(INFO_ZONE, "RSI region code = %d\n", adapter->dfs_region);
adapter->country[0] = request->alpha2[0];
adapter->country[1] = request->alpha2[1];
mutex_unlock(&common->mutex);
}
static void rsi_mac80211_rfkill_poll(struct ieee80211_hw *hw)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
mutex_lock(&common->mutex);
if (common->fsm_state != FSM_MAC_INIT_DONE)
wiphy_rfkill_set_hw_state(hw->wiphy, true);
else
wiphy_rfkill_set_hw_state(hw->wiphy, false);
mutex_unlock(&common->mutex);
}
static void rsi_resume_conn_channel(struct rsi_common *common)
{
struct rsi_hw *adapter = common->priv;
struct ieee80211_vif *vif;
int cnt;
for (cnt = 0; cnt < RSI_MAX_VIFS; cnt++) {
vif = adapter->vifs[cnt];
if (!vif)
continue;
if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO)) {
rsi_switch_channel(adapter, vif);
break;
}
if (((vif->type == NL80211_IFTYPE_STATION) ||
(vif->type == NL80211_IFTYPE_P2P_CLIENT)) &&
vif->bss_conf.assoc) {
rsi_switch_channel(adapter, vif);
break;
}
}
}
void rsi_roc_timeout(struct timer_list *t)
{
struct rsi_common *common = from_timer(common, t, roc_timer);
rsi_dbg(INFO_ZONE, "Remain on channel expired\n");
mutex_lock(&common->mutex);
ieee80211_remain_on_channel_expired(common->priv->hw);
if (timer_pending(&common->roc_timer))
del_timer(&common->roc_timer);
rsi_resume_conn_channel(common);
mutex_unlock(&common->mutex);
}
static int rsi_mac80211_roc(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_channel *chan, int duration,
enum ieee80211_roc_type type)
{
struct rsi_hw *adapter = (struct rsi_hw *)hw->priv;
struct rsi_common *common = (struct rsi_common *)adapter->priv;
int status = 0;
rsi_dbg(INFO_ZONE, "***** Remain on channel *****\n");
mutex_lock(&common->mutex);
rsi_dbg(INFO_ZONE, "%s: channel: %d duration: %dms\n",
__func__, chan->hw_value, duration);
if (timer_pending(&common->roc_timer)) {
rsi_dbg(INFO_ZONE, "Stop on-going ROC\n");
del_timer(&common->roc_timer);
}
common->roc_timer.expires = msecs_to_jiffies(duration) + jiffies;
add_timer(&common->roc_timer);
/* Configure band */
if (rsi_band_check(common, chan)) {
rsi_dbg(ERR_ZONE, "Failed to set band\n");
status = -EINVAL;
goto out;
}
/* Configure channel */
if (rsi_set_channel(common, chan)) {
rsi_dbg(ERR_ZONE, "Failed to set the channel\n");
status = -EINVAL;
goto out;
}
common->roc_vif = vif;
ieee80211_ready_on_channel(hw);
rsi_dbg(INFO_ZONE, "%s: Ready on channel :%d\n",
__func__, chan->hw_value);
out:
mutex_unlock(&common->mutex);
return status;
}
static int rsi_mac80211_cancel_roc(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
rsi_dbg(INFO_ZONE, "Cancel remain on channel\n");
mutex_lock(&common->mutex);
if (!timer_pending(&common->roc_timer)) {
mutex_unlock(&common->mutex);
return 0;
}
del_timer(&common->roc_timer);
rsi_resume_conn_channel(common);
mutex_unlock(&common->mutex);
return 0;
}
#ifdef CONFIG_PM
static const struct wiphy_wowlan_support rsi_wowlan_support = {
.flags = WIPHY_WOWLAN_ANY |
WIPHY_WOWLAN_MAGIC_PKT |
WIPHY_WOWLAN_DISCONNECT |
WIPHY_WOWLAN_GTK_REKEY_FAILURE |
WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
WIPHY_WOWLAN_EAP_IDENTITY_REQ |
WIPHY_WOWLAN_4WAY_HANDSHAKE,
};
static u16 rsi_wow_map_triggers(struct rsi_common *common,
struct cfg80211_wowlan *wowlan)
{
u16 wow_triggers = 0;
rsi_dbg(INFO_ZONE, "Mapping wowlan triggers\n");
if (wowlan->any)
wow_triggers |= RSI_WOW_ANY;
if (wowlan->magic_pkt)
wow_triggers |= RSI_WOW_MAGIC_PKT;
if (wowlan->disconnect)
wow_triggers |= RSI_WOW_DISCONNECT;
if (wowlan->gtk_rekey_failure || wowlan->eap_identity_req ||
wowlan->four_way_handshake)
wow_triggers |= RSI_WOW_GTK_REKEY;
return wow_triggers;
}
int rsi_config_wowlan(struct rsi_hw *adapter, struct cfg80211_wowlan *wowlan)
{
struct rsi_common *common = adapter->priv;
u16 triggers = 0;
u16 rx_filter_word = 0;
struct ieee80211_bss_conf *bss = NULL;
rsi_dbg(INFO_ZONE, "Config WoWLAN to device\n");
if (!adapter->vifs[0])
return -EINVAL;
bss = &adapter->vifs[0]->bss_conf;
if (WARN_ON(!wowlan)) {
rsi_dbg(ERR_ZONE, "WoW triggers not enabled\n");
return -EINVAL;
}
common->wow_flags |= RSI_WOW_ENABLED;
triggers = rsi_wow_map_triggers(common, wowlan);
if (!triggers) {
rsi_dbg(ERR_ZONE, "%s:No valid WoW triggers\n", __func__);
return -EINVAL;
}
if (!bss->assoc) {
rsi_dbg(ERR_ZONE,
"Cannot configure WoWLAN (Station not connected)\n");
common->wow_flags |= RSI_WOW_NO_CONNECTION;
return 0;
}
rsi_dbg(INFO_ZONE, "TRIGGERS %x\n", triggers);
if (common->coex_mode > 1)
rsi_disable_ps(adapter, adapter->vifs[0]);
rsi_send_wowlan_request(common, triggers, 1);
/**
* Increase the beacon_miss threshold & keep-alive timers in
* vap_update frame
*/
rsi_send_vap_dynamic_update(common);
rx_filter_word = (ALLOW_DATA_ASSOC_PEER | DISALLOW_BEACONS);
rsi_send_rx_filter_frame(common, rx_filter_word);
return 0;
}
EXPORT_SYMBOL(rsi_config_wowlan);
static int rsi_mac80211_suspend(struct ieee80211_hw *hw,
struct cfg80211_wowlan *wowlan)
{
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
rsi_dbg(INFO_ZONE, "%s: mac80211 suspend\n", __func__);
mutex_lock(&common->mutex);
if (rsi_config_wowlan(adapter, wowlan)) {
rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n");
mutex_unlock(&common->mutex);
return 1;
}
mutex_unlock(&common->mutex);
return 0;
}
static int rsi_mac80211_resume(struct ieee80211_hw *hw)
{
u16 rx_filter_word = 0;
struct rsi_hw *adapter = hw->priv;
struct rsi_common *common = adapter->priv;
common->wow_flags = 0;
rsi_dbg(INFO_ZONE, "%s: mac80211 resume\n", __func__);
if (common->hibernate_resume) {
common->mac_ops_resumed = true;
/* Device need a complete restart of all MAC operations.
* returning 1 will serve this purpose.
*/
return 1;
}
mutex_lock(&common->mutex);
rsi_send_wowlan_request(common, 0, 0);
rx_filter_word = (ALLOW_DATA_ASSOC_PEER | ALLOW_CTRL_ASSOC_PEER |
ALLOW_MGMT_ASSOC_PEER);
rsi_send_rx_filter_frame(common, rx_filter_word);
mutex_unlock(&common->mutex);
return 0;
}
#endif
static const struct ieee80211_ops mac80211_ops = {
.tx = rsi_mac80211_tx,
.start = rsi_mac80211_start,
.stop = rsi_mac80211_stop,
.add_interface = rsi_mac80211_add_interface,
.remove_interface = rsi_mac80211_remove_interface,
.config = rsi_mac80211_config,
.bss_info_changed = rsi_mac80211_bss_info_changed,
.conf_tx = rsi_mac80211_conf_tx,
.configure_filter = rsi_mac80211_conf_filter,
.set_key = rsi_mac80211_set_key,
.set_rts_threshold = rsi_mac80211_set_rts_threshold,
.set_bitrate_mask = rsi_mac80211_set_rate_mask,
.ampdu_action = rsi_mac80211_ampdu_action,
.sta_add = rsi_mac80211_sta_add,
.sta_remove = rsi_mac80211_sta_remove,
.set_antenna = rsi_mac80211_set_antenna,
.get_antenna = rsi_mac80211_get_antenna,
.rfkill_poll = rsi_mac80211_rfkill_poll,
.remain_on_channel = rsi_mac80211_roc,
.cancel_remain_on_channel = rsi_mac80211_cancel_roc,
#ifdef CONFIG_PM
.suspend = rsi_mac80211_suspend,
.resume = rsi_mac80211_resume,
#endif
.hw_scan = rsi_mac80211_hw_scan_start,
.cancel_hw_scan = rsi_mac80211_cancel_hw_scan,
};
/**
* rsi_mac80211_attach() - This function is used to initialize Mac80211 stack.
* @common: Pointer to the driver private structure.
*
* Return: 0 on success, negative error codes on failure.
*/
int rsi_mac80211_attach(struct rsi_common *common)
{
int status = 0;
struct ieee80211_hw *hw = NULL;
struct wiphy *wiphy = NULL;
struct rsi_hw *adapter = common->priv;
u8 addr_mask[ETH_ALEN] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x3};
rsi_dbg(INIT_ZONE, "%s: Performing mac80211 attach\n", __func__);
hw = ieee80211_alloc_hw(sizeof(struct rsi_hw), &mac80211_ops);
if (!hw) {
rsi_dbg(ERR_ZONE, "%s: ieee80211 hw alloc failed\n", __func__);
return -ENOMEM;
}
wiphy = hw->wiphy;
SET_IEEE80211_DEV(hw, adapter->device);
hw->priv = adapter;
adapter->hw = hw;
ieee80211_hw_set(hw, SIGNAL_DBM);
ieee80211_hw_set(hw, HAS_RATE_CONTROL);
ieee80211_hw_set(hw, AMPDU_AGGREGATION);
ieee80211_hw_set(hw, SUPPORTS_PS);
ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
hw->queues = MAX_HW_QUEUES;
hw->extra_tx_headroom = RSI_NEEDED_HEADROOM;
hw->max_rates = 1;
hw->max_rate_tries = MAX_RETRIES;
hw->uapsd_queues = RSI_IEEE80211_UAPSD_QUEUES;
hw->uapsd_max_sp_len = IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL;
hw->max_tx_aggregation_subframes = RSI_MAX_TX_AGGR_FRMS;
hw->max_rx_aggregation_subframes = RSI_MAX_RX_AGGR_FRMS;
hw->rate_control_algorithm = "AARF";
SET_IEEE80211_PERM_ADDR(hw, common->mac_addr);
ether_addr_copy(hw->wiphy->addr_mask, addr_mask);
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_AP) |
BIT(NL80211_IFTYPE_P2P_DEVICE) |
BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_P2P_GO);
wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
wiphy->retry_short = RETRY_SHORT;
wiphy->retry_long = RETRY_LONG;
wiphy->frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
wiphy->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
wiphy->flags = 0;
wiphy->available_antennas_rx = 1;
wiphy->available_antennas_tx = 1;
status = rsi_register_rates_channels(adapter, NL80211_BAND_2GHZ);
if (status)
return status;
wiphy->bands[NL80211_BAND_2GHZ] =
&adapter->sbands[NL80211_BAND_2GHZ];
if (common->num_supp_bands > 1) {
status = rsi_register_rates_channels(adapter,
NL80211_BAND_5GHZ);
if (status)
return status;
wiphy->bands[NL80211_BAND_5GHZ] =
&adapter->sbands[NL80211_BAND_5GHZ];
}
/* AP Parameters */
wiphy->max_ap_assoc_sta = rsi_max_ap_stas[common->oper_mode - 1];
common->max_stations = wiphy->max_ap_assoc_sta;
rsi_dbg(ERR_ZONE, "Max Stations Allowed = %d\n", common->max_stations);
hw->sta_data_size = sizeof(struct rsi_sta);
wiphy->max_scan_ssids = RSI_MAX_SCAN_SSIDS;
wiphy->max_scan_ie_len = RSI_MAX_SCAN_IE_LEN;
wiphy->flags = WIPHY_FLAG_REPORTS_OBSS;
wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
wiphy->reg_notifier = rsi_reg_notify;
#ifdef CONFIG_PM
wiphy->wowlan = &rsi_wowlan_support;
#endif
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
/* Wi-Fi direct parameters */
wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
wiphy->flags |= WIPHY_FLAG_OFFCHAN_TX;
wiphy->max_remain_on_channel_duration = 10000;
hw->max_listen_interval = 10;
wiphy->iface_combinations = rsi_iface_combinations;
wiphy->n_iface_combinations = ARRAY_SIZE(rsi_iface_combinations);
if (common->coex_mode > 1)
wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
status = ieee80211_register_hw(hw);
if (status)
return status;
return rsi_init_dbgfs(adapter);
}
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