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linux_dsm_epyc7002/drivers/net/wireless/ath/ath6kl/cfg80211.c
Johannes Berg 80279fb7ba cfg80211: properly send NL80211_ATTR_DISCONNECTED_BY_AP in disconnect 
When we disconnect from the AP, drivers call cfg80211_disconnect().
This doesn't know whether the disconnection was initiated locally
or by the AP though, which can cause problems with the supplicant,
for example with WPS. This issue obviously doesn't show up with any
mac80211 based driver since mac80211 doesn't call this function.

Fix this by requiring drivers to indicate whether the disconnect is
locally generated or not. I've tried to update the drivers, but may
not have gotten the values correct, and some drivers may currently
not be able to report correct values. In case of doubt I left it at
false, which is the current behaviour.

For libertas, make adjustments as indicated by Dan Williams.

Reported-by: Matthieu Mauger <matthieux.mauger@intel.com>
Tested-by: Matthieu Mauger <matthieux.mauger@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-05-26 15:21:27 +02:00

3883 lines
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/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
* Copyright (c) 2011-2012 Qualcomm Atheros, 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.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/moduleparam.h>
#include <linux/inetdevice.h>
#include <linux/export.h>
#include "core.h"
#include "cfg80211.h"
#include "debug.h"
#include "hif-ops.h"
#include "testmode.h"
#define RATETAB_ENT(_rate, _rateid, _flags) { \
.bitrate = (_rate), \
.flags = (_flags), \
.hw_value = (_rateid), \
}
#define CHAN2G(_channel, _freq, _flags) { \
.band = IEEE80211_BAND_2GHZ, \
.hw_value = (_channel), \
.center_freq = (_freq), \
.flags = (_flags), \
.max_antenna_gain = 0, \
.max_power = 30, \
}
#define CHAN5G(_channel, _flags) { \
.band = IEEE80211_BAND_5GHZ, \
.hw_value = (_channel), \
.center_freq = 5000 + (5 * (_channel)), \
.flags = (_flags), \
.max_antenna_gain = 0, \
.max_power = 30, \
}
#define DEFAULT_BG_SCAN_PERIOD 60
struct ath6kl_cfg80211_match_probe_ssid {
struct cfg80211_ssid ssid;
u8 flag;
};
static struct ieee80211_rate ath6kl_rates[] = {
RATETAB_ENT(10, 0x1, 0),
RATETAB_ENT(20, 0x2, 0),
RATETAB_ENT(55, 0x4, 0),
RATETAB_ENT(110, 0x8, 0),
RATETAB_ENT(60, 0x10, 0),
RATETAB_ENT(90, 0x20, 0),
RATETAB_ENT(120, 0x40, 0),
RATETAB_ENT(180, 0x80, 0),
RATETAB_ENT(240, 0x100, 0),
RATETAB_ENT(360, 0x200, 0),
RATETAB_ENT(480, 0x400, 0),
RATETAB_ENT(540, 0x800, 0),
};
#define ath6kl_a_rates (ath6kl_rates + 4)
#define ath6kl_a_rates_size 8
#define ath6kl_g_rates (ath6kl_rates + 0)
#define ath6kl_g_rates_size 12
#define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20
#define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
IEEE80211_HT_CAP_SGI_20 | \
IEEE80211_HT_CAP_SGI_40)
static struct ieee80211_channel ath6kl_2ghz_channels[] = {
CHAN2G(1, 2412, 0),
CHAN2G(2, 2417, 0),
CHAN2G(3, 2422, 0),
CHAN2G(4, 2427, 0),
CHAN2G(5, 2432, 0),
CHAN2G(6, 2437, 0),
CHAN2G(7, 2442, 0),
CHAN2G(8, 2447, 0),
CHAN2G(9, 2452, 0),
CHAN2G(10, 2457, 0),
CHAN2G(11, 2462, 0),
CHAN2G(12, 2467, 0),
CHAN2G(13, 2472, 0),
CHAN2G(14, 2484, 0),
};
static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
CHAN5G(34, 0), CHAN5G(36, 0),
CHAN5G(38, 0), CHAN5G(40, 0),
CHAN5G(42, 0), CHAN5G(44, 0),
CHAN5G(46, 0), CHAN5G(48, 0),
CHAN5G(52, 0), CHAN5G(56, 0),
CHAN5G(60, 0), CHAN5G(64, 0),
CHAN5G(100, 0), CHAN5G(104, 0),
CHAN5G(108, 0), CHAN5G(112, 0),
CHAN5G(116, 0), CHAN5G(120, 0),
CHAN5G(124, 0), CHAN5G(128, 0),
CHAN5G(132, 0), CHAN5G(136, 0),
CHAN5G(140, 0), CHAN5G(149, 0),
CHAN5G(153, 0), CHAN5G(157, 0),
CHAN5G(161, 0), CHAN5G(165, 0),
CHAN5G(184, 0), CHAN5G(188, 0),
CHAN5G(192, 0), CHAN5G(196, 0),
CHAN5G(200, 0), CHAN5G(204, 0),
CHAN5G(208, 0), CHAN5G(212, 0),
CHAN5G(216, 0),
};
static struct ieee80211_supported_band ath6kl_band_2ghz = {
.n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
.channels = ath6kl_2ghz_channels,
.n_bitrates = ath6kl_g_rates_size,
.bitrates = ath6kl_g_rates,
.ht_cap.cap = ath6kl_g_htcap,
.ht_cap.ht_supported = true,
};
static struct ieee80211_supported_band ath6kl_band_5ghz = {
.n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
.channels = ath6kl_5ghz_a_channels,
.n_bitrates = ath6kl_a_rates_size,
.bitrates = ath6kl_a_rates,
.ht_cap.cap = ath6kl_a_htcap,
.ht_cap.ht_supported = true,
};
#define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */
/* returns true if scheduled scan was stopped */
static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif)
{
struct ath6kl *ar = vif->ar;
if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags))
return false;
del_timer_sync(&vif->sched_scan_timer);
if (ar->state == ATH6KL_STATE_RECOVERY)
return true;
ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false);
return true;
}
static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif)
{
struct ath6kl *ar = vif->ar;
bool stopped;
stopped = __ath6kl_cfg80211_sscan_stop(vif);
if (!stopped)
return;
cfg80211_sched_scan_stopped(ar->wiphy);
}
static int ath6kl_set_wpa_version(struct ath6kl_vif *vif,
enum nl80211_wpa_versions wpa_version)
{
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
if (!wpa_version) {
vif->auth_mode = NONE_AUTH;
} else if (wpa_version & NL80211_WPA_VERSION_2) {
vif->auth_mode = WPA2_AUTH;
} else if (wpa_version & NL80211_WPA_VERSION_1) {
vif->auth_mode = WPA_AUTH;
} else {
ath6kl_err("%s: %u not supported\n", __func__, wpa_version);
return -ENOTSUPP;
}
return 0;
}
static int ath6kl_set_auth_type(struct ath6kl_vif *vif,
enum nl80211_auth_type auth_type)
{
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
switch (auth_type) {
case NL80211_AUTHTYPE_OPEN_SYSTEM:
vif->dot11_auth_mode = OPEN_AUTH;
break;
case NL80211_AUTHTYPE_SHARED_KEY:
vif->dot11_auth_mode = SHARED_AUTH;
break;
case NL80211_AUTHTYPE_NETWORK_EAP:
vif->dot11_auth_mode = LEAP_AUTH;
break;
case NL80211_AUTHTYPE_AUTOMATIC:
vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH;
break;
default:
ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type);
return -ENOTSUPP;
}
return 0;
}
static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast)
{
u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto;
u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len :
&vif->grp_crypto_len;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
__func__, cipher, ucast);
switch (cipher) {
case 0:
/* our own hack to use value 0 as no crypto used */
*ar_cipher = NONE_CRYPT;
*ar_cipher_len = 0;
break;
case WLAN_CIPHER_SUITE_WEP40:
*ar_cipher = WEP_CRYPT;
*ar_cipher_len = 5;
break;
case WLAN_CIPHER_SUITE_WEP104:
*ar_cipher = WEP_CRYPT;
*ar_cipher_len = 13;
break;
case WLAN_CIPHER_SUITE_TKIP:
*ar_cipher = TKIP_CRYPT;
*ar_cipher_len = 0;
break;
case WLAN_CIPHER_SUITE_CCMP:
*ar_cipher = AES_CRYPT;
*ar_cipher_len = 0;
break;
case WLAN_CIPHER_SUITE_SMS4:
*ar_cipher = WAPI_CRYPT;
*ar_cipher_len = 0;
break;
default:
ath6kl_err("cipher 0x%x not supported\n", cipher);
return -ENOTSUPP;
}
return 0;
}
static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt)
{
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
if (key_mgmt == WLAN_AKM_SUITE_PSK) {
if (vif->auth_mode == WPA_AUTH)
vif->auth_mode = WPA_PSK_AUTH;
else if (vif->auth_mode == WPA2_AUTH)
vif->auth_mode = WPA2_PSK_AUTH;
} else if (key_mgmt == 0x00409600) {
if (vif->auth_mode == WPA_AUTH)
vif->auth_mode = WPA_AUTH_CCKM;
else if (vif->auth_mode == WPA2_AUTH)
vif->auth_mode = WPA2_AUTH_CCKM;
} else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
vif->auth_mode = NONE_AUTH;
}
}
static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif)
{
struct ath6kl *ar = vif->ar;
if (!test_bit(WMI_READY, &ar->flag)) {
ath6kl_err("wmi is not ready\n");
return false;
}
if (!test_bit(WLAN_ENABLED, &vif->flags)) {
ath6kl_err("wlan disabled\n");
return false;
}
return true;
}
static bool ath6kl_is_wpa_ie(const u8 *pos)
{
return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
pos[2] == 0x00 && pos[3] == 0x50 &&
pos[4] == 0xf2 && pos[5] == 0x01;
}
static bool ath6kl_is_rsn_ie(const u8 *pos)
{
return pos[0] == WLAN_EID_RSN;
}
static bool ath6kl_is_wps_ie(const u8 *pos)
{
return (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
pos[1] >= 4 &&
pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 &&
pos[5] == 0x04);
}
static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies,
size_t ies_len)
{
struct ath6kl *ar = vif->ar;
const u8 *pos;
u8 *buf = NULL;
size_t len = 0;
int ret;
/*
* Clear previously set flag
*/
ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
/*
* Filter out RSN/WPA IE(s)
*/
if (ies && ies_len) {
buf = kmalloc(ies_len, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
pos = ies;
while (pos + 1 < ies + ies_len) {
if (pos + 2 + pos[1] > ies + ies_len)
break;
if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) {
memcpy(buf + len, pos, 2 + pos[1]);
len += 2 + pos[1];
}
if (ath6kl_is_wps_ie(pos))
ar->connect_ctrl_flags |= CONNECT_WPS_FLAG;
pos += 2 + pos[1];
}
}
ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
WMI_FRAME_ASSOC_REQ, buf, len);
kfree(buf);
return ret;
}
static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type)
{
switch (type) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_CLIENT:
*nw_type = INFRA_NETWORK;
break;
case NL80211_IFTYPE_ADHOC:
*nw_type = ADHOC_NETWORK;
break;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
*nw_type = AP_NETWORK;
break;
default:
ath6kl_err("invalid interface type %u\n", type);
return -ENOTSUPP;
}
return 0;
}
static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type,
u8 *if_idx, u8 *nw_type)
{
int i;
if (ath6kl_nliftype_to_drv_iftype(type, nw_type))
return false;
if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) &&
ar->num_vif))
return false;
if (type == NL80211_IFTYPE_STATION ||
type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) {
for (i = 0; i < ar->vif_max; i++) {
if ((ar->avail_idx_map) & BIT(i)) {
*if_idx = i;
return true;
}
}
}
if (type == NL80211_IFTYPE_P2P_CLIENT ||
type == NL80211_IFTYPE_P2P_GO) {
for (i = ar->max_norm_iface; i < ar->vif_max; i++) {
if ((ar->avail_idx_map) & BIT(i)) {
*if_idx = i;
return true;
}
}
}
return false;
}
static bool ath6kl_is_tx_pending(struct ath6kl *ar)
{
return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0;
}
static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif,
bool enable)
{
int err;
if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag)))
return;
if (vif->nw_type != INFRA_NETWORK)
return;
if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE,
vif->ar->fw_capabilities))
return;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n",
enable ? "enable" : "disable");
err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi,
vif->fw_vif_idx, enable);
if (err)
ath6kl_err("failed to %s enhanced bmiss detection: %d\n",
enable ? "enable" : "disable", err);
}
static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_connect_params *sme)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
int status;
u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE;
u16 interval;
ath6kl_cfg80211_sscan_disable(vif);
vif->sme_state = SME_CONNECTING;
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
ath6kl_err("destroy in progress\n");
return -EBUSY;
}
if (test_bit(SKIP_SCAN, &ar->flag) &&
((sme->channel && sme->channel->center_freq == 0) ||
(sme->bssid && is_zero_ether_addr(sme->bssid)))) {
ath6kl_err("SkipScan: channel or bssid invalid\n");
return -EINVAL;
}
if (down_interruptible(&ar->sem)) {
ath6kl_err("busy, couldn't get access\n");
return -ERESTARTSYS;
}
if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
ath6kl_err("busy, destroy in progress\n");
up(&ar->sem);
return -EBUSY;
}
if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {
/*
* sleep until the command queue drains
*/
wait_event_interruptible_timeout(ar->event_wq,
ath6kl_is_tx_pending(ar),
WMI_TIMEOUT);
if (signal_pending(current)) {
ath6kl_err("cmd queue drain timeout\n");
up(&ar->sem);
return -EINTR;
}
}
status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len);
if (status) {
up(&ar->sem);
return status;
}
if (sme->ie == NULL || sme->ie_len == 0)
ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
if (test_bit(CONNECTED, &vif->flags) &&
vif->ssid_len == sme->ssid_len &&
!memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
vif->reconnect_flag = true;
status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx,
vif->req_bssid,
vif->ch_hint);
up(&ar->sem);
if (status) {
ath6kl_err("wmi_reconnect_cmd failed\n");
return -EIO;
}
return 0;
} else if (vif->ssid_len == sme->ssid_len &&
!memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
ath6kl_disconnect(vif);
}
memset(vif->ssid, 0, sizeof(vif->ssid));
vif->ssid_len = sme->ssid_len;
memcpy(vif->ssid, sme->ssid, sme->ssid_len);
if (sme->channel)
vif->ch_hint = sme->channel->center_freq;
memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid));
ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions);
status = ath6kl_set_auth_type(vif, sme->auth_type);
if (status) {
up(&ar->sem);
return status;
}
if (sme->crypto.n_ciphers_pairwise)
ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true);
else
ath6kl_set_cipher(vif, 0, true);
ath6kl_set_cipher(vif, sme->crypto.cipher_group, false);
if (sme->crypto.n_akm_suites)
ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]);
if ((sme->key_len) &&
(vif->auth_mode == NONE_AUTH) &&
(vif->prwise_crypto == WEP_CRYPT)) {
struct ath6kl_key *key = NULL;
if (sme->key_idx > WMI_MAX_KEY_INDEX) {
ath6kl_err("key index %d out of bounds\n",
sme->key_idx);
up(&ar->sem);
return -ENOENT;
}
key = &vif->keys[sme->key_idx];
key->key_len = sme->key_len;
memcpy(key->key, sme->key, key->key_len);
key->cipher = vif->prwise_crypto;
vif->def_txkey_index = sme->key_idx;
ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx,
vif->prwise_crypto,
GROUP_USAGE | TX_USAGE,
key->key_len,
NULL, 0,
key->key, KEY_OP_INIT_VAL, NULL,
NO_SYNC_WMIFLAG);
}
if (!ar->usr_bss_filter) {
clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
ALL_BSS_FILTER, 0) != 0) {
ath6kl_err("couldn't set bss filtering\n");
up(&ar->sem);
return -EIO;
}
}
vif->nw_type = vif->next_mode;
/* enable enhanced bmiss detection if applicable */
ath6kl_cfg80211_sta_bmiss_enhance(vif, true);
if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)
nw_subtype = SUBTYPE_P2PCLIENT;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: connect called with authmode %d dot11 auth %d"
" PW crypto %d PW crypto len %d GRP crypto %d"
" GRP crypto len %d channel hint %u\n",
__func__,
vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
vif->prwise_crypto_len, vif->grp_crypto,
vif->grp_crypto_len, vif->ch_hint);
vif->reconnect_flag = 0;
if (vif->nw_type == INFRA_NETWORK) {
interval = max_t(u16, vif->listen_intvl_t,
ATH6KL_MAX_WOW_LISTEN_INTL);
status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
interval,
0);
if (status) {
ath6kl_err("couldn't set listen intervel\n");
up(&ar->sem);
return status;
}
}
status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
vif->dot11_auth_mode, vif->auth_mode,
vif->prwise_crypto,
vif->prwise_crypto_len,
vif->grp_crypto, vif->grp_crypto_len,
vif->ssid_len, vif->ssid,
vif->req_bssid, vif->ch_hint,
ar->connect_ctrl_flags, nw_subtype);
if (sme->bg_scan_period == 0) {
/* disable background scan if period is 0 */
sme->bg_scan_period = 0xffff;
} else if (sme->bg_scan_period == -1) {
/* configure default value if not specified */
sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
}
ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0,
sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
up(&ar->sem);
if (status == -EINVAL) {
memset(vif->ssid, 0, sizeof(vif->ssid));
vif->ssid_len = 0;
ath6kl_err("invalid request\n");
return -ENOENT;
} else if (status) {
ath6kl_err("ath6kl_wmi_connect_cmd failed\n");
return -EIO;
}
if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
((vif->auth_mode == WPA_PSK_AUTH) ||
(vif->auth_mode == WPA2_PSK_AUTH))) {
mod_timer(&vif->disconnect_timer,
jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
}
ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
set_bit(CONNECT_PEND, &vif->flags);
return 0;
}
static struct cfg80211_bss *
ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
enum network_type nw_type,
const u8 *bssid,
struct ieee80211_channel *chan,
const u8 *beacon_ie,
size_t beacon_ie_len)
{
struct ath6kl *ar = vif->ar;
struct cfg80211_bss *bss;
u16 cap_val;
enum ieee80211_bss_type bss_type;
u8 *ie;
if (nw_type & ADHOC_NETWORK) {
cap_val = WLAN_CAPABILITY_IBSS;
bss_type = IEEE80211_BSS_TYPE_IBSS;
} else {
cap_val = WLAN_CAPABILITY_ESS;
bss_type = IEEE80211_BSS_TYPE_ESS;
}
bss = cfg80211_get_bss(ar->wiphy, chan, bssid,
vif->ssid, vif->ssid_len,
bss_type, IEEE80211_PRIVACY_ANY);
if (bss == NULL) {
/*
* Since cfg80211 may not yet know about the BSS,
* generate a partial entry until the first BSS info
* event becomes available.
*
* Prepend SSID element since it is not included in the Beacon
* IEs from the target.
*/
ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL);
if (ie == NULL)
return NULL;
ie[0] = WLAN_EID_SSID;
ie[1] = vif->ssid_len;
memcpy(ie + 2, vif->ssid, vif->ssid_len);
memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len);
bss = cfg80211_inform_bss(ar->wiphy, chan,
CFG80211_BSS_FTYPE_UNKNOWN,
bssid, 0, cap_val, 100,
ie, 2 + vif->ssid_len + beacon_ie_len,
0, GFP_KERNEL);
if (bss)
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"added bss %pM to cfg80211\n", bssid);
kfree(ie);
} else {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n");
}
return bss;
}
void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel,
u8 *bssid, u16 listen_intvl,
u16 beacon_intvl,
enum network_type nw_type,
u8 beacon_ie_len, u8 assoc_req_len,
u8 assoc_resp_len, u8 *assoc_info)
{
struct ieee80211_channel *chan;
struct ath6kl *ar = vif->ar;
struct cfg80211_bss *bss;
/* capinfo + listen interval */
u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
/* capinfo + status code + associd */
u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
assoc_resp_ie_offset;
assoc_req_len -= assoc_req_ie_offset;
assoc_resp_len -= assoc_resp_ie_offset;
/*
* Store Beacon interval here; DTIM period will be available only once
* a Beacon frame from the AP is seen.
*/
vif->assoc_bss_beacon_int = beacon_intvl;
clear_bit(DTIM_PERIOD_AVAIL, &vif->flags);
if (nw_type & ADHOC_NETWORK) {
if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: ath6k not in ibss mode\n", __func__);
return;
}
}
if (nw_type & INFRA_NETWORK) {
if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: ath6k not in station mode\n", __func__);
return;
}
}
chan = ieee80211_get_channel(ar->wiphy, (int) channel);
bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan,
assoc_info, beacon_ie_len);
if (!bss) {
ath6kl_err("could not add cfg80211 bss entry\n");
return;
}
if (nw_type & ADHOC_NETWORK) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n",
nw_type & ADHOC_CREATOR ? "creator" : "joiner");
cfg80211_ibss_joined(vif->ndev, bssid, chan, GFP_KERNEL);
cfg80211_put_bss(ar->wiphy, bss);
return;
}
if (vif->sme_state == SME_CONNECTING) {
/* inform connect result to cfg80211 */
vif->sme_state = SME_CONNECTED;
cfg80211_connect_result(vif->ndev, bssid,
assoc_req_ie, assoc_req_len,
assoc_resp_ie, assoc_resp_len,
WLAN_STATUS_SUCCESS, GFP_KERNEL);
cfg80211_put_bss(ar->wiphy, bss);
} else if (vif->sme_state == SME_CONNECTED) {
/* inform roam event to cfg80211 */
cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len,
assoc_resp_ie, assoc_resp_len, GFP_KERNEL);
}
}
static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
struct net_device *dev, u16 reason_code)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
reason_code);
ath6kl_cfg80211_sscan_disable(vif);
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
ath6kl_err("busy, destroy in progress\n");
return -EBUSY;
}
if (down_interruptible(&ar->sem)) {
ath6kl_err("busy, couldn't get access\n");
return -ERESTARTSYS;
}
vif->reconnect_flag = 0;
ath6kl_disconnect(vif);
memset(vif->ssid, 0, sizeof(vif->ssid));
vif->ssid_len = 0;
if (!test_bit(SKIP_SCAN, &ar->flag))
memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
up(&ar->sem);
vif->sme_state = SME_DISCONNECTED;
return 0;
}
void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason,
u8 *bssid, u8 assoc_resp_len,
u8 *assoc_info, u16 proto_reason)
{
struct ath6kl *ar = vif->ar;
if (vif->scan_req) {
cfg80211_scan_done(vif->scan_req, true);
vif->scan_req = NULL;
}
if (vif->nw_type & ADHOC_NETWORK) {
if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC)
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: ath6k not in ibss mode\n", __func__);
return;
}
if (vif->nw_type & INFRA_NETWORK) {
if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: ath6k not in station mode\n", __func__);
return;
}
}
clear_bit(CONNECT_PEND, &vif->flags);
if (vif->sme_state == SME_CONNECTING) {
cfg80211_connect_result(vif->ndev,
bssid, NULL, 0,
NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE,
GFP_KERNEL);
} else if (vif->sme_state == SME_CONNECTED) {
cfg80211_disconnected(vif->ndev, proto_reason,
NULL, 0, false, GFP_KERNEL);
}
vif->sme_state = SME_DISCONNECTED;
/*
* Send a disconnect command to target when a disconnect event is
* received with reason code other than 3 (DISCONNECT_CMD - disconnect
* request from host) to make the firmware stop trying to connect even
* after giving disconnect event. There will be one more disconnect
* event for this disconnect command with reason code DISCONNECT_CMD
* which won't be notified to cfg80211.
*/
if (reason != DISCONNECT_CMD)
ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
}
static int ath6kl_set_probed_ssids(struct ath6kl *ar,
struct ath6kl_vif *vif,
struct cfg80211_ssid *ssids, int n_ssids,
struct cfg80211_match_set *match_set,
int n_match_ssid)
{
u8 i, j, index_to_add, ssid_found = false;
struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS];
memset(ssid_list, 0, sizeof(ssid_list));
if (n_ssids > MAX_PROBED_SSIDS ||
n_match_ssid > MAX_PROBED_SSIDS)
return -EINVAL;
for (i = 0; i < n_ssids; i++) {
memcpy(ssid_list[i].ssid.ssid,
ssids[i].ssid,
ssids[i].ssid_len);
ssid_list[i].ssid.ssid_len = ssids[i].ssid_len;
if (ssids[i].ssid_len)
ssid_list[i].flag = SPECIFIC_SSID_FLAG;
else
ssid_list[i].flag = ANY_SSID_FLAG;
if (n_match_ssid == 0)
ssid_list[i].flag |= MATCH_SSID_FLAG;
}
index_to_add = i;
for (i = 0; i < n_match_ssid; i++) {
ssid_found = false;
for (j = 0; j < n_ssids; j++) {
if ((match_set[i].ssid.ssid_len ==
ssid_list[j].ssid.ssid_len) &&
(!memcmp(ssid_list[j].ssid.ssid,
match_set[i].ssid.ssid,
match_set[i].ssid.ssid_len))) {
ssid_list[j].flag |= MATCH_SSID_FLAG;
ssid_found = true;
break;
}
}
if (ssid_found)
continue;
if (index_to_add >= MAX_PROBED_SSIDS)
continue;
ssid_list[index_to_add].ssid.ssid_len =
match_set[i].ssid.ssid_len;
memcpy(ssid_list[index_to_add].ssid.ssid,
match_set[i].ssid.ssid,
match_set[i].ssid.ssid_len);
ssid_list[index_to_add].flag |= MATCH_SSID_FLAG;
index_to_add++;
}
for (i = 0; i < index_to_add; i++) {
ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
ssid_list[i].flag,
ssid_list[i].ssid.ssid_len,
ssid_list[i].ssid.ssid);
}
/* Make sure no old entries are left behind */
for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) {
ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
DISABLE_SSID_FLAG, 0, NULL);
}
return 0;
}
static int ath6kl_cfg80211_scan(struct wiphy *wiphy,
struct cfg80211_scan_request *request)
{
struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev);
struct ath6kl *ar = ath6kl_priv(vif->ndev);
s8 n_channels = 0;
u16 *channels = NULL;
int ret = 0;
u32 force_fg_scan = 0;
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
ath6kl_cfg80211_sscan_disable(vif);
if (!ar->usr_bss_filter) {
clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
ALL_BSS_FILTER, 0);
if (ret) {
ath6kl_err("couldn't set bss filtering\n");
return ret;
}
}
ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
request->n_ssids, NULL, 0);
if (ret < 0)
return ret;
/* this also clears IE in fw if it's not set */
ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
WMI_FRAME_PROBE_REQ,
request->ie, request->ie_len);
if (ret) {
ath6kl_err("failed to set Probe Request appie for scan\n");
return ret;
}
/*
* Scan only the requested channels if the request specifies a set of
* channels. If the list is longer than the target supports, do not
* configure the list and instead, scan all available channels.
*/
if (request->n_channels > 0 &&
request->n_channels <= WMI_MAX_CHANNELS) {
u8 i;
n_channels = request->n_channels;
channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL);
if (channels == NULL) {
ath6kl_warn("failed to set scan channels, scan all channels");
n_channels = 0;
}
for (i = 0; i < n_channels; i++)
channels[i] = request->channels[i]->center_freq;
}
if (test_bit(CONNECTED, &vif->flags))
force_fg_scan = 1;
vif->scan_req = request;
ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx,
WMI_LONG_SCAN, force_fg_scan,
false, 0,
ATH6KL_FG_SCAN_INTERVAL,
n_channels, channels,
request->no_cck,
request->rates);
if (ret) {
ath6kl_err("failed to start scan: %d\n", ret);
vif->scan_req = NULL;
}
kfree(channels);
return ret;
}
void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted)
{
struct ath6kl *ar = vif->ar;
int i;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__,
aborted ? " aborted" : "");
if (!vif->scan_req)
return;
if (aborted)
goto out;
if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) {
for (i = 0; i < vif->scan_req->n_ssids; i++) {
ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
i + 1, DISABLE_SSID_FLAG,
0, NULL);
}
}
out:
cfg80211_scan_done(vif->scan_req, aborted);
vif->scan_req = NULL;
}
void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq,
enum wmi_phy_mode mode)
{
struct cfg80211_chan_def chandef;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"channel switch notify nw_type %d freq %d mode %d\n",
vif->nw_type, freq, mode);
cfg80211_chandef_create(&chandef,
ieee80211_get_channel(vif->ar->wiphy, freq),
(mode == WMI_11G_HT20) ?
NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT);
mutex_lock(&vif->wdev.mtx);
cfg80211_ch_switch_notify(vif->ndev, &chandef);
mutex_unlock(&vif->wdev.mtx);
}
static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
u8 key_index, bool pairwise,
const u8 *mac_addr,
struct key_params *params)
{
struct ath6kl *ar = ath6kl_priv(ndev);
struct ath6kl_vif *vif = netdev_priv(ndev);
struct ath6kl_key *key = NULL;
int seq_len;
u8 key_usage;
u8 key_type;
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (params->cipher == CCKM_KRK_CIPHER_SUITE) {
if (params->key_len != WMI_KRK_LEN)
return -EINVAL;
return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx,
params->key);
}
if (key_index > WMI_MAX_KEY_INDEX) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: key index %d out of bounds\n", __func__,
key_index);
return -ENOENT;
}
key = &vif->keys[key_index];
memset(key, 0, sizeof(struct ath6kl_key));
if (pairwise)
key_usage = PAIRWISE_USAGE;
else
key_usage = GROUP_USAGE;
seq_len = params->seq_len;
if (params->cipher == WLAN_CIPHER_SUITE_SMS4 &&
seq_len > ATH6KL_KEY_SEQ_LEN) {
/* Only first half of the WPI PN is configured */
seq_len = ATH6KL_KEY_SEQ_LEN;
}
if (params->key_len > WLAN_MAX_KEY_LEN ||
seq_len > sizeof(key->seq))
return -EINVAL;
key->key_len = params->key_len;
memcpy(key->key, params->key, key->key_len);
key->seq_len = seq_len;
memcpy(key->seq, params->seq, key->seq_len);
key->cipher = params->cipher;
switch (key->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
key_type = WEP_CRYPT;
break;
case WLAN_CIPHER_SUITE_TKIP:
key_type = TKIP_CRYPT;
break;
case WLAN_CIPHER_SUITE_CCMP:
key_type = AES_CRYPT;
break;
case WLAN_CIPHER_SUITE_SMS4:
key_type = WAPI_CRYPT;
break;
default:
return -ENOTSUPP;
}
if (((vif->auth_mode == WPA_PSK_AUTH) ||
(vif->auth_mode == WPA2_PSK_AUTH)) &&
(key_usage & GROUP_USAGE))
del_timer(&vif->disconnect_timer);
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",
__func__, key_index, key->key_len, key_type,
key_usage, key->seq_len);
if (vif->nw_type == AP_NETWORK && !pairwise &&
(key_type == TKIP_CRYPT || key_type == AES_CRYPT ||
key_type == WAPI_CRYPT)) {
ar->ap_mode_bkey.valid = true;
ar->ap_mode_bkey.key_index = key_index;
ar->ap_mode_bkey.key_type = key_type;
ar->ap_mode_bkey.key_len = key->key_len;
memcpy(ar->ap_mode_bkey.key, key->key, key->key_len);
if (!test_bit(CONNECTED, &vif->flags)) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"Delay initial group key configuration until AP mode has been started\n");
/*
* The key will be set in ath6kl_connect_ap_mode() once
* the connected event is received from the target.
*/
return 0;
}
}
if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT &&
!test_bit(CONNECTED, &vif->flags)) {
/*
* Store the key locally so that it can be re-configured after
* the AP mode has properly started
* (ath6kl_install_statioc_wep_keys).
*/
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"Delay WEP key configuration until AP mode has been started\n");
vif->wep_key_list[key_index].key_len = key->key_len;
memcpy(vif->wep_key_list[key_index].key, key->key,
key->key_len);
return 0;
}
return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index,
key_type, key_usage, key->key_len,
key->seq, key->seq_len, key->key,
KEY_OP_INIT_VAL,
(u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
}
static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
u8 key_index, bool pairwise,
const u8 *mac_addr)
{
struct ath6kl *ar = ath6kl_priv(ndev);
struct ath6kl_vif *vif = netdev_priv(ndev);
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (key_index > WMI_MAX_KEY_INDEX) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: key index %d out of bounds\n", __func__,
key_index);
return -ENOENT;
}
if (!vif->keys[key_index].key_len) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: index %d is empty\n", __func__, key_index);
return 0;
}
vif->keys[key_index].key_len = 0;
return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index);
}
static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
u8 key_index, bool pairwise,
const u8 *mac_addr, void *cookie,
void (*callback) (void *cookie,
struct key_params *))
{
struct ath6kl_vif *vif = netdev_priv(ndev);
struct ath6kl_key *key = NULL;
struct key_params params;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (key_index > WMI_MAX_KEY_INDEX) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: key index %d out of bounds\n", __func__,
key_index);
return -ENOENT;
}
key = &vif->keys[key_index];
memset(&params, 0, sizeof(params));
params.cipher = key->cipher;
params.key_len = key->key_len;
params.seq_len = key->seq_len;
params.seq = key->seq;
params.key = key->key;
callback(cookie, &params);
return key->key_len ? 0 : -ENOENT;
}
static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
struct net_device *ndev,
u8 key_index, bool unicast,
bool multicast)
{
struct ath6kl *ar = ath6kl_priv(ndev);
struct ath6kl_vif *vif = netdev_priv(ndev);
struct ath6kl_key *key = NULL;
u8 key_usage;
enum crypto_type key_type = NONE_CRYPT;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (key_index > WMI_MAX_KEY_INDEX) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: key index %d out of bounds\n",
__func__, key_index);
return -ENOENT;
}
if (!vif->keys[key_index].key_len) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
__func__, key_index);
return -EINVAL;
}
vif->def_txkey_index = key_index;
key = &vif->keys[vif->def_txkey_index];
key_usage = GROUP_USAGE;
if (vif->prwise_crypto == WEP_CRYPT)
key_usage |= TX_USAGE;
if (unicast)
key_type = vif->prwise_crypto;
if (multicast)
key_type = vif->grp_crypto;
if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags))
return 0; /* Delay until AP mode has been started */
return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx,
vif->def_txkey_index,
key_type, key_usage,
key->key_len, key->seq, key->seq_len,
key->key,
KEY_OP_INIT_VAL, NULL,
SYNC_BOTH_WMIFLAG);
}
void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid,
bool ismcast)
{
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
cfg80211_michael_mic_failure(vif->ndev, vif->bssid,
(ismcast ? NL80211_KEYTYPE_GROUP :
NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
GFP_KERNEL);
}
static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
{
struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
struct ath6kl_vif *vif;
int ret;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
changed);
vif = ath6kl_vif_first(ar);
if (!vif)
return -EIO;
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);
if (ret != 0) {
ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");
return -EIO;
}
}
return 0;
}
static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
struct wireless_dev *wdev,
enum nl80211_tx_power_setting type,
int mbm)
{
struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
struct ath6kl_vif *vif;
int dbm = MBM_TO_DBM(mbm);
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
type, dbm);
vif = ath6kl_vif_first(ar);
if (!vif)
return -EIO;
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
switch (type) {
case NL80211_TX_POWER_AUTOMATIC:
return 0;
case NL80211_TX_POWER_LIMITED:
ar->tx_pwr = dbm;
break;
default:
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
__func__, type);
return -EOPNOTSUPP;
}
ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm);
return 0;
}
static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy,
struct wireless_dev *wdev,
int *dbm)
{
struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
struct ath6kl_vif *vif;
vif = ath6kl_vif_first(ar);
if (!vif)
return -EIO;
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (test_bit(CONNECTED, &vif->flags)) {
ar->tx_pwr = 0;
if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) {
ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
return -EIO;
}
wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0,
5 * HZ);
if (signal_pending(current)) {
ath6kl_err("target did not respond\n");
return -EINTR;
}
}
*dbm = ar->tx_pwr;
return 0;
}
static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
struct net_device *dev,
bool pmgmt, int timeout)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct wmi_power_mode_cmd mode;
struct ath6kl_vif *vif = netdev_priv(dev);
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
__func__, pmgmt, timeout);
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (pmgmt) {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
mode.pwr_mode = REC_POWER;
} else {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
mode.pwr_mode = MAX_PERF_POWER;
}
if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx,
mode.pwr_mode) != 0) {
ath6kl_err("wmi_powermode_cmd failed\n");
return -EIO;
}
return 0;
}
static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy,
const char *name,
unsigned char name_assign_type,
enum nl80211_iftype type,
u32 *flags,
struct vif_params *params)
{
struct ath6kl *ar = wiphy_priv(wiphy);
struct wireless_dev *wdev;
u8 if_idx, nw_type;
if (ar->num_vif == ar->vif_max) {
ath6kl_err("Reached maximum number of supported vif\n");
return ERR_PTR(-EINVAL);
}
if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) {
ath6kl_err("Not a supported interface type\n");
return ERR_PTR(-EINVAL);
}
wdev = ath6kl_interface_add(ar, name, name_assign_type, type, if_idx, nw_type);
if (!wdev)
return ERR_PTR(-ENOMEM);
ar->num_vif++;
return wdev;
}
static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy,
struct wireless_dev *wdev)
{
struct ath6kl *ar = wiphy_priv(wiphy);
struct ath6kl_vif *vif = netdev_priv(wdev->netdev);
spin_lock_bh(&ar->list_lock);
list_del(&vif->list);
spin_unlock_bh(&ar->list_lock);
ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag));
rtnl_lock();
ath6kl_cfg80211_vif_cleanup(vif);
rtnl_unlock();
return 0;
}
static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
struct net_device *ndev,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
struct ath6kl_vif *vif = netdev_priv(ndev);
int i;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
/*
* Don't bring up p2p on an interface which is not initialized
* for p2p operation where fw does not have capability to switch
* dynamically between non-p2p and p2p type interface.
*/
if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
vif->ar->fw_capabilities) &&
(type == NL80211_IFTYPE_P2P_CLIENT ||
type == NL80211_IFTYPE_P2P_GO)) {
if (vif->ar->vif_max == 1) {
if (vif->fw_vif_idx != 0)
return -EINVAL;
else
goto set_iface_type;
}
for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) {
if (i == vif->fw_vif_idx)
break;
}
if (i == vif->ar->vif_max) {
ath6kl_err("Invalid interface to bring up P2P\n");
return -EINVAL;
}
}
/* need to clean up enhanced bmiss detection fw state */
ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
set_iface_type:
switch (type) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_CLIENT:
vif->next_mode = INFRA_NETWORK;
break;
case NL80211_IFTYPE_ADHOC:
vif->next_mode = ADHOC_NETWORK;
break;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
vif->next_mode = AP_NETWORK;
break;
default:
ath6kl_err("invalid interface type %u\n", type);
return -EOPNOTSUPP;
}
vif->wdev.iftype = type;
return 0;
}
static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_ibss_params *ibss_param)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
int status;
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
vif->ssid_len = ibss_param->ssid_len;
memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len);
if (ibss_param->chandef.chan)
vif->ch_hint = ibss_param->chandef.chan->center_freq;
if (ibss_param->channel_fixed) {
/*
* TODO: channel_fixed: The channel should be fixed, do not
* search for IBSSs to join on other channels. Target
* firmware does not support this feature, needs to be
* updated.
*/
return -EOPNOTSUPP;
}
memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
memcpy(vif->req_bssid, ibss_param->bssid,
sizeof(vif->req_bssid));
ath6kl_set_wpa_version(vif, 0);
status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM);
if (status)
return status;
if (ibss_param->privacy) {
ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true);
ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false);
} else {
ath6kl_set_cipher(vif, 0, true);
ath6kl_set_cipher(vif, 0, false);
}
vif->nw_type = vif->next_mode;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"%s: connect called with authmode %d dot11 auth %d"
" PW crypto %d PW crypto len %d GRP crypto %d"
" GRP crypto len %d channel hint %u\n",
__func__,
vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
vif->prwise_crypto_len, vif->grp_crypto,
vif->grp_crypto_len, vif->ch_hint);
status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
vif->dot11_auth_mode, vif->auth_mode,
vif->prwise_crypto,
vif->prwise_crypto_len,
vif->grp_crypto, vif->grp_crypto_len,
vif->ssid_len, vif->ssid,
vif->req_bssid, vif->ch_hint,
ar->connect_ctrl_flags, SUBTYPE_NONE);
set_bit(CONNECT_PEND, &vif->flags);
return 0;
}
static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
struct net_device *dev)
{
struct ath6kl_vif *vif = netdev_priv(dev);
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
ath6kl_disconnect(vif);
memset(vif->ssid, 0, sizeof(vif->ssid));
vif->ssid_len = 0;
return 0;
}
static const u32 cipher_suites[] = {
WLAN_CIPHER_SUITE_WEP40,
WLAN_CIPHER_SUITE_WEP104,
WLAN_CIPHER_SUITE_TKIP,
WLAN_CIPHER_SUITE_CCMP,
CCKM_KRK_CIPHER_SUITE,
WLAN_CIPHER_SUITE_SMS4,
};
static bool is_rate_legacy(s32 rate)
{
static const s32 legacy[] = { 1000, 2000, 5500, 11000,
6000, 9000, 12000, 18000, 24000,
36000, 48000, 54000
};
u8 i;
for (i = 0; i < ARRAY_SIZE(legacy); i++)
if (rate == legacy[i])
return true;
return false;
}
static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
{
static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
52000, 58500, 65000, 72200
};
u8 i;
for (i = 0; i < ARRAY_SIZE(ht20); i++) {
if (rate == ht20[i]) {
if (i == ARRAY_SIZE(ht20) - 1)
/* last rate uses sgi */
*sgi = true;
else
*sgi = false;
*mcs = i;
return true;
}
}
return false;
}
static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
{
static const s32 ht40[] = { 13500, 27000, 40500, 54000,
81000, 108000, 121500, 135000,
150000
};
u8 i;
for (i = 0; i < ARRAY_SIZE(ht40); i++) {
if (rate == ht40[i]) {
if (i == ARRAY_SIZE(ht40) - 1)
/* last rate uses sgi */
*sgi = true;
else
*sgi = false;
*mcs = i;
return true;
}
}
return false;
}
static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
const u8 *mac, struct station_info *sinfo)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
long left;
bool sgi;
s32 rate;
int ret;
u8 mcs;
if (memcmp(mac, vif->bssid, ETH_ALEN) != 0)
return -ENOENT;
if (down_interruptible(&ar->sem))
return -EBUSY;
set_bit(STATS_UPDATE_PEND, &vif->flags);
ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx);
if (ret != 0) {
up(&ar->sem);
return -EIO;
}
left = wait_event_interruptible_timeout(ar->event_wq,
!test_bit(STATS_UPDATE_PEND,
&vif->flags),
WMI_TIMEOUT);
up(&ar->sem);
if (left == 0)
return -ETIMEDOUT;
else if (left < 0)
return left;
if (vif->target_stats.rx_byte) {
sinfo->rx_bytes = vif->target_stats.rx_byte;
sinfo->filled |= BIT(NL80211_STA_INFO_RX_BYTES64);
sinfo->rx_packets = vif->target_stats.rx_pkt;
sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS);
}
if (vif->target_stats.tx_byte) {
sinfo->tx_bytes = vif->target_stats.tx_byte;
sinfo->filled |= BIT(NL80211_STA_INFO_TX_BYTES64);
sinfo->tx_packets = vif->target_stats.tx_pkt;
sinfo->filled |= BIT(NL80211_STA_INFO_TX_PACKETS);
}
sinfo->signal = vif->target_stats.cs_rssi;
sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
rate = vif->target_stats.tx_ucast_rate;
if (is_rate_legacy(rate)) {
sinfo->txrate.legacy = rate / 100;
} else if (is_rate_ht20(rate, &mcs, &sgi)) {
if (sgi) {
sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
sinfo->txrate.mcs = mcs - 1;
} else {
sinfo->txrate.mcs = mcs;
}
sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
sinfo->txrate.bw = RATE_INFO_BW_20;
} else if (is_rate_ht40(rate, &mcs, &sgi)) {
if (sgi) {
sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
sinfo->txrate.mcs = mcs - 1;
} else {
sinfo->txrate.mcs = mcs;
}
sinfo->txrate.bw = RATE_INFO_BW_40;
sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
} else {
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"invalid rate from stats: %d\n", rate);
ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE);
return 0;
}
sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
if (test_bit(CONNECTED, &vif->flags) &&
test_bit(DTIM_PERIOD_AVAIL, &vif->flags) &&
vif->nw_type == INFRA_NETWORK) {
sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
sinfo->bss_param.flags = 0;
sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period;
sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int;
}
return 0;
}
static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
struct cfg80211_pmksa *pmksa)
{
struct ath6kl *ar = ath6kl_priv(netdev);
struct ath6kl_vif *vif = netdev_priv(netdev);
return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
pmksa->pmkid, true);
}
static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
struct cfg80211_pmksa *pmksa)
{
struct ath6kl *ar = ath6kl_priv(netdev);
struct ath6kl_vif *vif = netdev_priv(netdev);
return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
pmksa->pmkid, false);
}
static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
{
struct ath6kl *ar = ath6kl_priv(netdev);
struct ath6kl_vif *vif = netdev_priv(netdev);
if (test_bit(CONNECTED, &vif->flags))
return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx,
vif->bssid, NULL, false);
return 0;
}
static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif,
struct cfg80211_wowlan *wow, u32 *filter)
{
int ret, pos;
u8 mask[WOW_PATTERN_SIZE];
u16 i;
/* Configure the patterns that we received from the user. */
for (i = 0; i < wow->n_patterns; i++) {
/*
* Convert given nl80211 specific mask value to equivalent
* driver specific mask value and send it to the chip along
* with patterns. For example, If the mask value defined in
* struct cfg80211_wowlan is 0xA (equivalent binary is 1010),
* then equivalent driver specific mask value is
* "0xFF 0x00 0xFF 0x00".
*/
memset(&mask, 0, sizeof(mask));
for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) {
if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8)))
mask[pos] = 0xFF;
}
/*
* Note: Pattern's offset is not passed as part of wowlan
* parameter from CFG layer. So it's always passed as ZERO
* to the firmware. It means, given WOW patterns are always
* matched from the first byte of received pkt in the firmware.
*/
ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
vif->fw_vif_idx, WOW_LIST_ID,
wow->patterns[i].pattern_len,
0 /* pattern offset */,
wow->patterns[i].pattern, mask);
if (ret)
return ret;
}
if (wow->disconnect)
*filter |= WOW_FILTER_OPTION_NWK_DISASSOC;
if (wow->magic_pkt)
*filter |= WOW_FILTER_OPTION_MAGIC_PACKET;
if (wow->gtk_rekey_failure)
*filter |= WOW_FILTER_OPTION_GTK_ERROR;
if (wow->eap_identity_req)
*filter |= WOW_FILTER_OPTION_EAP_REQ;
if (wow->four_way_handshake)
*filter |= WOW_FILTER_OPTION_8021X_4WAYHS;
return 0;
}
static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif)
{
static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x08 };
static const u8 unicst_mask[] = { 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x7f };
u8 unicst_offset = 0;
static const u8 arp_pattern[] = { 0x08, 0x06 };
static const u8 arp_mask[] = { 0xff, 0xff };
u8 arp_offset = 20;
static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
u8 discvr_offset = 38;
static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ };
static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ };
u8 dhcp_offset = 0;
int ret;
/* Setup unicast IP, EAPOL-like and ARP pkt pattern */
ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
vif->fw_vif_idx, WOW_LIST_ID,
sizeof(unicst_pattern), unicst_offset,
unicst_pattern, unicst_mask);
if (ret) {
ath6kl_err("failed to add WOW unicast IP pattern\n");
return ret;
}
/* Setup all ARP pkt pattern */
ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
vif->fw_vif_idx, WOW_LIST_ID,
sizeof(arp_pattern), arp_offset,
arp_pattern, arp_mask);
if (ret) {
ath6kl_err("failed to add WOW ARP pattern\n");
return ret;
}
/*
* Setup multicast pattern for mDNS 224.0.0.251,
* SSDP 239.255.255.250 and LLMNR 224.0.0.252
*/
ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
vif->fw_vif_idx, WOW_LIST_ID,
sizeof(discvr_pattern), discvr_offset,
discvr_pattern, discvr_mask);
if (ret) {
ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
return ret;
}
/* Setup all DHCP broadcast pkt pattern */
ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
vif->fw_vif_idx, WOW_LIST_ID,
sizeof(dhcp_pattern), dhcp_offset,
dhcp_pattern, dhcp_mask);
if (ret) {
ath6kl_err("failed to add WOW DHCP broadcast pattern\n");
return ret;
}
return 0;
}
static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
{
struct net_device *ndev = vif->ndev;
static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
u8 discvr_offset = 38;
u8 mac_mask[ETH_ALEN];
int ret;
/* Setup unicast pkt pattern */
eth_broadcast_addr(mac_mask);
ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
vif->fw_vif_idx, WOW_LIST_ID,
ETH_ALEN, 0, ndev->dev_addr,
mac_mask);
if (ret) {
ath6kl_err("failed to add WOW unicast pattern\n");
return ret;
}
/*
* Setup multicast pattern for mDNS 224.0.0.251,
* SSDP 239.255.255.250 and LLMNR 224.0.0.252
*/
if ((ndev->flags & IFF_ALLMULTI) ||
(ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) {
ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
vif->fw_vif_idx, WOW_LIST_ID,
sizeof(discvr_pattern), discvr_offset,
discvr_pattern, discvr_mask);
if (ret) {
ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
return ret;
}
}
return 0;
}
static int is_hsleep_mode_procsed(struct ath6kl_vif *vif)
{
return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
}
static bool is_ctrl_ep_empty(struct ath6kl *ar)
{
return !ar->tx_pending[ar->ctrl_ep];
}
static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif)
{
int ret, left;
clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
ATH6KL_HOST_MODE_ASLEEP);
if (ret)
return ret;
left = wait_event_interruptible_timeout(ar->event_wq,
is_hsleep_mode_procsed(vif),
WMI_TIMEOUT);
if (left == 0) {
ath6kl_warn("timeout, didn't get host sleep cmd processed event\n");
ret = -ETIMEDOUT;
} else if (left < 0) {
ath6kl_warn("error while waiting for host sleep cmd processed event %d\n",
left);
ret = left;
}
if (ar->tx_pending[ar->ctrl_ep]) {
left = wait_event_interruptible_timeout(ar->event_wq,
is_ctrl_ep_empty(ar),
WMI_TIMEOUT);
if (left == 0) {
ath6kl_warn("clear wmi ctrl data timeout\n");
ret = -ETIMEDOUT;
} else if (left < 0) {
ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
ret = left;
}
}
return ret;
}
static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif,
struct cfg80211_wowlan *wow, u32 *filter)
{
struct ath6kl *ar = vif->ar;
struct in_device *in_dev;
struct in_ifaddr *ifa;
int ret;
u16 i, bmiss_time;
__be32 ips[MAX_IP_ADDRS];
u8 index = 0;
if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) &&
test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
ar->fw_capabilities)) {
ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
vif->fw_vif_idx, false);
if (ret)
return ret;
}
/* Clear existing WOW patterns */
for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++)
ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx,
WOW_LIST_ID, i);
/*
* Skip the default WOW pattern configuration
* if the driver receives any WOW patterns from
* the user.
*/
if (wow)
ret = ath6kl_wow_usr(ar, vif, wow, filter);
else if (vif->nw_type == AP_NETWORK)
ret = ath6kl_wow_ap(ar, vif);
else
ret = ath6kl_wow_sta(ar, vif);
if (ret)
return ret;
netif_stop_queue(vif->ndev);
if (vif->nw_type != AP_NETWORK) {
ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
ATH6KL_MAX_WOW_LISTEN_INTL,
0);
if (ret)
return ret;
/* Set listen interval x 15 times as bmiss time */
bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15;
if (bmiss_time > ATH6KL_MAX_BMISS_TIME)
bmiss_time = ATH6KL_MAX_BMISS_TIME;
ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
bmiss_time, 0);
if (ret)
return ret;
ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
0xFFFF, 0, 0xFFFF, 0, 0, 0,
0, 0, 0, 0);
if (ret)
return ret;
}
/* Setup own IP addr for ARP agent. */
in_dev = __in_dev_get_rtnl(vif->ndev);
if (!in_dev)
return 0;
ifa = in_dev->ifa_list;
memset(&ips, 0, sizeof(ips));
/* Configure IP addr only if IP address count < MAX_IP_ADDRS */
while (index < MAX_IP_ADDRS && ifa) {
ips[index] = ifa->ifa_local;
ifa = ifa->ifa_next;
index++;
}
if (ifa) {
ath6kl_err("total IP addr count is exceeding fw limit\n");
return -EINVAL;
}
ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]);
if (ret) {
ath6kl_err("fail to setup ip for arp agent\n");
return ret;
}
return ret;
}
static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
{
struct ath6kl_vif *first_vif, *vif;
int ret = 0;
u32 filter = 0;
bool connected = false;
/* enter / leave wow suspend on first vif always */
first_vif = ath6kl_vif_first(ar);
if (WARN_ON(unlikely(!first_vif)) ||
!ath6kl_cfg80211_ready(first_vif))
return -EIO;
if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST))
return -EINVAL;
/* install filters for each connected vif */
spin_lock_bh(&ar->list_lock);
list_for_each_entry(vif, &ar->vif_list, list) {
if (!test_bit(CONNECTED, &vif->flags) ||
!ath6kl_cfg80211_ready(vif))
continue;
connected = true;
ret = ath6kl_wow_suspend_vif(vif, wow, &filter);
if (ret)
break;
}
spin_unlock_bh(&ar->list_lock);
if (!connected)
return -ENOTCONN;
else if (ret)
return ret;
ar->state = ATH6KL_STATE_SUSPENDING;
ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx,
ATH6KL_WOW_MODE_ENABLE,
filter,
WOW_HOST_REQ_DELAY);
if (ret)
return ret;
return ath6kl_cfg80211_host_sleep(ar, first_vif);
}
static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif)
{
struct ath6kl *ar = vif->ar;
int ret;
if (vif->nw_type != AP_NETWORK) {
ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
if (ret)
return ret;
ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
vif->listen_intvl_t, 0);
if (ret)
return ret;
ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
vif->bmiss_time_t, 0);
if (ret)
return ret;
}
if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) &&
test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
ar->fw_capabilities)) {
ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
vif->fw_vif_idx, true);
if (ret)
return ret;
}
netif_wake_queue(vif->ndev);
return 0;
}
static int ath6kl_wow_resume(struct ath6kl *ar)
{
struct ath6kl_vif *vif;
int ret;
vif = ath6kl_vif_first(ar);
if (WARN_ON(unlikely(!vif)) ||
!ath6kl_cfg80211_ready(vif))
return -EIO;
ar->state = ATH6KL_STATE_RESUMING;
ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
ATH6KL_HOST_MODE_AWAKE);
if (ret) {
ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n",
ret);
goto cleanup;
}
spin_lock_bh(&ar->list_lock);
list_for_each_entry(vif, &ar->vif_list, list) {
if (!test_bit(CONNECTED, &vif->flags) ||
!ath6kl_cfg80211_ready(vif))
continue;
ret = ath6kl_wow_resume_vif(vif);
if (ret)
break;
}
spin_unlock_bh(&ar->list_lock);
if (ret)
goto cleanup;
ar->state = ATH6KL_STATE_ON;
return 0;
cleanup:
ar->state = ATH6KL_STATE_WOW;
return ret;
}
static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar)
{
struct ath6kl_vif *vif;
int ret;
vif = ath6kl_vif_first(ar);
if (!vif)
return -EIO;
if (!test_bit(WMI_READY, &ar->flag)) {
ath6kl_err("deepsleep failed as wmi is not ready\n");
return -EIO;
}
ath6kl_cfg80211_stop_all(ar);
/* Save the current power mode before enabling power save */
ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
if (ret)
return ret;
/* Disable WOW mode */
ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
ATH6KL_WOW_MODE_DISABLE,
0, 0);
if (ret)
return ret;
/* Flush all non control pkts in TX path */
ath6kl_tx_data_cleanup(ar);
ret = ath6kl_cfg80211_host_sleep(ar, vif);
if (ret)
return ret;
return 0;
}
static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar)
{
struct ath6kl_vif *vif;
int ret;
vif = ath6kl_vif_first(ar);
if (!vif)
return -EIO;
if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
ar->wmi->saved_pwr_mode);
if (ret)
return ret;
}
ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
ATH6KL_HOST_MODE_AWAKE);
if (ret)
return ret;
ar->state = ATH6KL_STATE_ON;
/* Reset scan parameter to default values */
ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
if (ret)
return ret;
return 0;
}
int ath6kl_cfg80211_suspend(struct ath6kl *ar,
enum ath6kl_cfg_suspend_mode mode,
struct cfg80211_wowlan *wow)
{
struct ath6kl_vif *vif;
enum ath6kl_state prev_state;
int ret;
switch (mode) {
case ATH6KL_CFG_SUSPEND_WOW:
ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n");
/* Flush all non control pkts in TX path */
ath6kl_tx_data_cleanup(ar);
prev_state = ar->state;
ret = ath6kl_wow_suspend(ar, wow);
if (ret) {
ar->state = prev_state;
return ret;
}
ar->state = ATH6KL_STATE_WOW;
break;
case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n");
ret = ath6kl_cfg80211_deepsleep_suspend(ar);
if (ret) {
ath6kl_err("deepsleep suspend failed: %d\n", ret);
return ret;
}
ar->state = ATH6KL_STATE_DEEPSLEEP;
break;
case ATH6KL_CFG_SUSPEND_CUTPOWER:
ath6kl_cfg80211_stop_all(ar);
if (ar->state == ATH6KL_STATE_OFF) {
ath6kl_dbg(ATH6KL_DBG_SUSPEND,
"suspend hw off, no action for cutpower\n");
break;
}
ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n");
ret = ath6kl_init_hw_stop(ar);
if (ret) {
ath6kl_warn("failed to stop hw during suspend: %d\n",
ret);
}
ar->state = ATH6KL_STATE_CUTPOWER;
break;
default:
break;
}
list_for_each_entry(vif, &ar->vif_list, list)
ath6kl_cfg80211_scan_complete_event(vif, true);
return 0;
}
EXPORT_SYMBOL(ath6kl_cfg80211_suspend);
int ath6kl_cfg80211_resume(struct ath6kl *ar)
{
int ret;
switch (ar->state) {
case ATH6KL_STATE_WOW:
ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n");
ret = ath6kl_wow_resume(ar);
if (ret) {
ath6kl_warn("wow mode resume failed: %d\n", ret);
return ret;
}
break;
case ATH6KL_STATE_DEEPSLEEP:
ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n");
ret = ath6kl_cfg80211_deepsleep_resume(ar);
if (ret) {
ath6kl_warn("deep sleep resume failed: %d\n", ret);
return ret;
}
break;
case ATH6KL_STATE_CUTPOWER:
ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n");
ret = ath6kl_init_hw_start(ar);
if (ret) {
ath6kl_warn("Failed to boot hw in resume: %d\n", ret);
return ret;
}
break;
default:
break;
}
return 0;
}
EXPORT_SYMBOL(ath6kl_cfg80211_resume);
#ifdef CONFIG_PM
/* hif layer decides what suspend mode to use */
static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy,
struct cfg80211_wowlan *wow)
{
struct ath6kl *ar = wiphy_priv(wiphy);
ath6kl_recovery_suspend(ar);
return ath6kl_hif_suspend(ar, wow);
}
static int __ath6kl_cfg80211_resume(struct wiphy *wiphy)
{
struct ath6kl *ar = wiphy_priv(wiphy);
int err;
err = ath6kl_hif_resume(ar);
if (err)
return err;
ath6kl_recovery_resume(ar);
return 0;
}
/*
* FIXME: WOW suspend mode is selected if the host sdio controller supports
* both sdio irq wake up and keep power. The target pulls sdio data line to
* wake up the host when WOW pattern matches. This causes sdio irq handler
* is being called in the host side which internally hits ath6kl's RX path.
*
* Since sdio interrupt is not disabled, RX path executes even before
* the host executes the actual resume operation from PM module.
*
* In the current scenario, WOW resume should happen before start processing
* any data from the target. So It's required to perform WOW resume in RX path.
* Ideally we should perform WOW resume only in the actual platform
* resume path. This area needs bit rework to avoid WOW resume in RX path.
*
* ath6kl_check_wow_status() is called from ath6kl_rx().
*/
void ath6kl_check_wow_status(struct ath6kl *ar)
{
if (ar->state == ATH6KL_STATE_SUSPENDING)
return;
if (ar->state == ATH6KL_STATE_WOW)
ath6kl_cfg80211_resume(ar);
}
#else
void ath6kl_check_wow_status(struct ath6kl *ar)
{
}
#endif
static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum ieee80211_band band,
bool ht_enable)
{
struct ath6kl_htcap *htcap = &vif->htcap[band];
if (htcap->ht_enable == ht_enable)
return 0;
if (ht_enable) {
/* Set default ht capabilities */
htcap->ht_enable = true;
htcap->cap_info = (band == IEEE80211_BAND_2GHZ) ?
ath6kl_g_htcap : ath6kl_a_htcap;
htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
} else /* Disable ht */
memset(htcap, 0, sizeof(*htcap));
return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx,
band, htcap);
}
static int ath6kl_restore_htcap(struct ath6kl_vif *vif)
{
struct wiphy *wiphy = vif->ar->wiphy;
int band, ret = 0;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (!wiphy->bands[band])
continue;
ret = ath6kl_set_htcap(vif, band,
wiphy->bands[band]->ht_cap.ht_supported);
if (ret)
return ret;
}
return ret;
}
static bool ath6kl_is_p2p_ie(const u8 *pos)
{
return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
pos[2] == 0x50 && pos[3] == 0x6f &&
pos[4] == 0x9a && pos[5] == 0x09;
}
static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif,
const u8 *ies, size_t ies_len)
{
struct ath6kl *ar = vif->ar;
const u8 *pos;
u8 *buf = NULL;
size_t len = 0;
int ret;
/*
* Filter out P2P IE(s) since they will be included depending on
* the Probe Request frame in ath6kl_send_go_probe_resp().
*/
if (ies && ies_len) {
buf = kmalloc(ies_len, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
pos = ies;
while (pos + 1 < ies + ies_len) {
if (pos + 2 + pos[1] > ies + ies_len)
break;
if (!ath6kl_is_p2p_ie(pos)) {
memcpy(buf + len, pos, 2 + pos[1]);
len += 2 + pos[1];
}
pos += 2 + pos[1];
}
}
ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
WMI_FRAME_PROBE_RESP, buf, len);
kfree(buf);
return ret;
}
static int ath6kl_set_ies(struct ath6kl_vif *vif,
struct cfg80211_beacon_data *info)
{
struct ath6kl *ar = vif->ar;
int res;
/* this also clears IE in fw if it's not set */
res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
WMI_FRAME_BEACON,
info->beacon_ies,
info->beacon_ies_len);
if (res)
return res;
/* this also clears IE in fw if it's not set */
res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
info->proberesp_ies_len);
if (res)
return res;
/* this also clears IE in fw if it's not set */
res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
WMI_FRAME_ASSOC_RESP,
info->assocresp_ies,
info->assocresp_ies_len);
if (res)
return res;
return 0;
}
static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon,
u8 *rsn_capab)
{
const u8 *rsn_ie;
size_t rsn_ie_len;
u16 cnt;
if (!beacon->tail)
return -EINVAL;
rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len);
if (!rsn_ie)
return -EINVAL;
rsn_ie_len = *(rsn_ie + 1);
/* skip element id and length */
rsn_ie += 2;
/* skip version */
if (rsn_ie_len < 2)
return -EINVAL;
rsn_ie += 2;
rsn_ie_len -= 2;
/* skip group cipher suite */
if (rsn_ie_len < 4)
return 0;
rsn_ie += 4;
rsn_ie_len -= 4;
/* skip pairwise cipher suite */
if (rsn_ie_len < 2)
return 0;
cnt = get_unaligned_le16(rsn_ie);
rsn_ie += (2 + cnt * 4);
rsn_ie_len -= (2 + cnt * 4);
/* skip akm suite */
if (rsn_ie_len < 2)
return 0;
cnt = get_unaligned_le16(rsn_ie);
rsn_ie += (2 + cnt * 4);
rsn_ie_len -= (2 + cnt * 4);
if (rsn_ie_len < 2)
return 0;
memcpy(rsn_capab, rsn_ie, 2);
return 0;
}
static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ap_settings *info)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
struct ieee80211_mgmt *mgmt;
bool hidden = false;
u8 *ies;
int ies_len;
struct wmi_connect_cmd p;
int res;
int i, ret;
u16 rsn_capab = 0;
int inactivity_timeout = 0;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__);
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (vif->next_mode != AP_NETWORK)
return -EOPNOTSUPP;
res = ath6kl_set_ies(vif, &info->beacon);
ar->ap_mode_bkey.valid = false;
ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx,
info->beacon_interval);
if (ret)
ath6kl_warn("Failed to set beacon interval: %d\n", ret);
ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx,
info->dtim_period);
/* ignore error, just print a warning and continue normally */
if (ret)
ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret);
if (info->beacon.head == NULL)
return -EINVAL;
mgmt = (struct ieee80211_mgmt *) info->beacon.head;
ies = mgmt->u.beacon.variable;
if (ies > info->beacon.head + info->beacon.head_len)
return -EINVAL;
ies_len = info->beacon.head + info->beacon.head_len - ies;
if (info->ssid == NULL)
return -EINVAL;
memcpy(vif->ssid, info->ssid, info->ssid_len);
vif->ssid_len = info->ssid_len;
if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)
hidden = true;
res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden);
if (res)
return res;
ret = ath6kl_set_auth_type(vif, info->auth_type);
if (ret)
return ret;
memset(&p, 0, sizeof(p));
for (i = 0; i < info->crypto.n_akm_suites; i++) {
switch (info->crypto.akm_suites[i]) {
case WLAN_AKM_SUITE_8021X:
if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
p.auth_mode |= WPA_AUTH;
if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
p.auth_mode |= WPA2_AUTH;
break;
case WLAN_AKM_SUITE_PSK:
if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
p.auth_mode |= WPA_PSK_AUTH;
if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
p.auth_mode |= WPA2_PSK_AUTH;
break;
}
}
if (p.auth_mode == 0)
p.auth_mode = NONE_AUTH;
vif->auth_mode = p.auth_mode;
for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {
switch (info->crypto.ciphers_pairwise[i]) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
p.prwise_crypto_type |= WEP_CRYPT;
break;
case WLAN_CIPHER_SUITE_TKIP:
p.prwise_crypto_type |= TKIP_CRYPT;
break;
case WLAN_CIPHER_SUITE_CCMP:
p.prwise_crypto_type |= AES_CRYPT;
break;
case WLAN_CIPHER_SUITE_SMS4:
p.prwise_crypto_type |= WAPI_CRYPT;
break;
}
}
if (p.prwise_crypto_type == 0) {
p.prwise_crypto_type = NONE_CRYPT;
ath6kl_set_cipher(vif, 0, true);
} else if (info->crypto.n_ciphers_pairwise == 1) {
ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true);
}
switch (info->crypto.cipher_group) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
p.grp_crypto_type = WEP_CRYPT;
break;
case WLAN_CIPHER_SUITE_TKIP:
p.grp_crypto_type = TKIP_CRYPT;
break;
case WLAN_CIPHER_SUITE_CCMP:
p.grp_crypto_type = AES_CRYPT;
break;
case WLAN_CIPHER_SUITE_SMS4:
p.grp_crypto_type = WAPI_CRYPT;
break;
default:
p.grp_crypto_type = NONE_CRYPT;
break;
}
ath6kl_set_cipher(vif, info->crypto.cipher_group, false);
p.nw_type = AP_NETWORK;
vif->nw_type = vif->next_mode;
p.ssid_len = vif->ssid_len;
memcpy(p.ssid, vif->ssid, vif->ssid_len);
p.dot11_auth_mode = vif->dot11_auth_mode;
p.ch = cpu_to_le16(info->chandef.chan->center_freq);
/* Enable uAPSD support by default */
res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true);
if (res < 0)
return res;
if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) {
p.nw_subtype = SUBTYPE_P2PGO;
} else {
/*
* Due to firmware limitation, it is not possible to
* do P2P mgmt operations in AP mode
*/
p.nw_subtype = SUBTYPE_NONE;
}
if (info->inactivity_timeout) {
inactivity_timeout = info->inactivity_timeout;
if (test_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS,
ar->fw_capabilities))
inactivity_timeout = DIV_ROUND_UP(inactivity_timeout,
60);
res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx,
inactivity_timeout);
if (res < 0)
return res;
}
if (ath6kl_set_htcap(vif, info->chandef.chan->band,
cfg80211_get_chandef_type(&info->chandef)
!= NL80211_CHAN_NO_HT))
return -EIO;
/*
* Get the PTKSA replay counter in the RSN IE. Supplicant
* will use the RSN IE in M3 message and firmware has to
* advertise the same in beacon/probe response. Send
* the complete RSN IE capability field to firmware
*/
if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) &&
test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
ar->fw_capabilities)) {
res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
WLAN_EID_RSN, WMI_RSN_IE_CAPB,
(const u8 *) &rsn_capab,
sizeof(rsn_capab));
vif->rsn_capab = rsn_capab;
if (res < 0)
return res;
}
memcpy(&vif->profile, &p, sizeof(p));
res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p);
if (res < 0)
return res;
return 0;
}
static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_beacon_data *beacon)
{
struct ath6kl_vif *vif = netdev_priv(dev);
if (!ath6kl_cfg80211_ready(vif))
return -EIO;
if (vif->next_mode != AP_NETWORK)
return -EOPNOTSUPP;
return ath6kl_set_ies(vif, beacon);
}
static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
if (vif->nw_type != AP_NETWORK)
return -EOPNOTSUPP;
if (!test_bit(CONNECTED, &vif->flags))
return -ENOTCONN;
ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
clear_bit(CONNECTED, &vif->flags);
/* Restore ht setting in firmware */
return ath6kl_restore_htcap(vif);
}
static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev,
struct station_del_parameters *params)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
const u8 *addr = params->mac ? params->mac : bcast_addr;
return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH,
addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
}
static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
const u8 *mac,
struct station_parameters *params)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
int err;
if (vif->nw_type != AP_NETWORK)
return -EOPNOTSUPP;
err = cfg80211_check_station_change(wiphy, params,
CFG80211_STA_AP_MLME_CLIENT);
if (err)
return err;
if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
WMI_AP_MLME_AUTHORIZE, mac, 0);
return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
WMI_AP_MLME_UNAUTHORIZE, mac, 0);
}
static int ath6kl_remain_on_channel(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct ieee80211_channel *chan,
unsigned int duration,
u64 *cookie)
{
struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
struct ath6kl *ar = ath6kl_priv(vif->ndev);
u32 id;
/* TODO: if already pending or ongoing remain-on-channel,
* return -EBUSY */
id = ++vif->last_roc_id;
if (id == 0) {
/* Do not use 0 as the cookie value */
id = ++vif->last_roc_id;
}
*cookie = id;
return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx,
chan->center_freq, duration);
}
static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy,
struct wireless_dev *wdev,
u64 cookie)
{
struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
struct ath6kl *ar = ath6kl_priv(vif->ndev);
if (cookie != vif->last_roc_id)
return -ENOENT;
vif->last_cancel_roc_id = cookie;
return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx);
}
static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif,
const u8 *buf, size_t len,
unsigned int freq)
{
struct ath6kl *ar = vif->ar;
const u8 *pos;
u8 *p2p;
int p2p_len;
int ret;
const struct ieee80211_mgmt *mgmt;
mgmt = (const struct ieee80211_mgmt *) buf;
/* Include P2P IE(s) from the frame generated in user space. */
p2p = kmalloc(len, GFP_KERNEL);
if (p2p == NULL)
return -ENOMEM;
p2p_len = 0;
pos = mgmt->u.probe_resp.variable;
while (pos + 1 < buf + len) {
if (pos + 2 + pos[1] > buf + len)
break;
if (ath6kl_is_p2p_ie(pos)) {
memcpy(p2p + p2p_len, pos, 2 + pos[1]);
p2p_len += 2 + pos[1];
}
pos += 2 + pos[1];
}
ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq,
mgmt->da, p2p, p2p_len);
kfree(p2p);
return ret;
}
static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif,
u32 id,
u32 freq,
u32 wait,
const u8 *buf,
size_t len,
bool *more_data,
bool no_cck)
{
struct ieee80211_mgmt *mgmt;
struct ath6kl_sta *conn;
bool is_psq_empty = false;
struct ath6kl_mgmt_buff *mgmt_buf;
size_t mgmt_buf_size;
struct ath6kl *ar = vif->ar;
mgmt = (struct ieee80211_mgmt *) buf;
if (is_multicast_ether_addr(mgmt->da))
return false;
conn = ath6kl_find_sta(vif, mgmt->da);
if (!conn)
return false;
if (conn->sta_flags & STA_PS_SLEEP) {
if (!(conn->sta_flags & STA_PS_POLLED)) {
/* Queue the frames if the STA is sleeping */
mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff);
mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL);
if (!mgmt_buf)
return false;
INIT_LIST_HEAD(&mgmt_buf->list);
mgmt_buf->id = id;
mgmt_buf->freq = freq;
mgmt_buf->wait = wait;
mgmt_buf->len = len;
mgmt_buf->no_cck = no_cck;
memcpy(mgmt_buf->buf, buf, len);
spin_lock_bh(&conn->psq_lock);
is_psq_empty = skb_queue_empty(&conn->psq) &&
(conn->mgmt_psq_len == 0);
list_add_tail(&mgmt_buf->list, &conn->mgmt_psq);
conn->mgmt_psq_len++;
spin_unlock_bh(&conn->psq_lock);
/*
* If this is the first pkt getting queued
* for this STA, update the PVB for this
* STA.
*/
if (is_psq_empty)
ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
conn->aid, 1);
return true;
}
/*
* This tx is because of a PsPoll.
* Determine if MoreData bit has to be set.
*/
spin_lock_bh(&conn->psq_lock);
if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0))
*more_data = true;
spin_unlock_bh(&conn->psq_lock);
}
return false;
}
/* Check if SSID length is greater than DIRECT- */
static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len)
{
const struct ieee80211_mgmt *mgmt;
mgmt = (const struct ieee80211_mgmt *) buf;
/* variable[1] contains the SSID tag length */
if (buf + len >= &mgmt->u.probe_resp.variable[1] &&
(mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) {
return true;
}
return false;
}
static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct cfg80211_mgmt_tx_params *params, u64 *cookie)
{
struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
struct ath6kl *ar = ath6kl_priv(vif->ndev);
struct ieee80211_channel *chan = params->chan;
const u8 *buf = params->buf;
size_t len = params->len;
unsigned int wait = params->wait;
bool no_cck = params->no_cck;
u32 id, freq;
const struct ieee80211_mgmt *mgmt;
bool more_data, queued;
/* default to the current channel, but use the one specified as argument
* if any
*/
freq = vif->ch_hint;
if (chan)
freq = chan->center_freq;
/* never send freq zero to the firmware */
if (WARN_ON(freq == 0))
return -EINVAL;
mgmt = (const struct ieee80211_mgmt *) buf;
if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
ieee80211_is_probe_resp(mgmt->frame_control) &&
ath6kl_is_p2p_go_ssid(buf, len)) {
/*
* Send Probe Response frame in GO mode using a separate WMI
* command to allow the target to fill in the generic IEs.
*/
*cookie = 0; /* TX status not supported */
return ath6kl_send_go_probe_resp(vif, buf, len, freq);
}
id = vif->send_action_id++;
if (id == 0) {
/*
* 0 is a reserved value in the WMI command and shall not be
* used for the command.
*/
id = vif->send_action_id++;
}
*cookie = id;
/* AP mode Power saving processing */
if (vif->nw_type == AP_NETWORK) {
queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len,
&more_data, no_cck);
if (queued)
return 0;
}
return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq,
wait, buf, len, no_cck);
}
static void ath6kl_mgmt_frame_register(struct wiphy *wiphy,
struct wireless_dev *wdev,
u16 frame_type, bool reg)
{
struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n",
__func__, frame_type, reg);
if (frame_type == IEEE80211_STYPE_PROBE_REQ) {
/*
* Note: This notification callback is not allowed to sleep, so
* we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we
* hardcode target to report Probe Request frames all the time.
*/
vif->probe_req_report = reg;
}
}
static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_sched_scan_request *request)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
u16 interval;
int ret, rssi_thold;
int n_match_sets = request->n_match_sets;
/*
* If there's a matchset w/o an SSID, then assume it's just for
* the RSSI (nothing else is currently supported) and ignore it.
* The device only supports a global RSSI filter that we set below.
*/
if (n_match_sets == 1 && !request->match_sets[0].ssid.ssid_len)
n_match_sets = 0;
if (ar->state != ATH6KL_STATE_ON)
return -EIO;
if (vif->sme_state != SME_DISCONNECTED)
return -EBUSY;
ath6kl_cfg80211_scan_complete_event(vif, true);
ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
request->n_ssids,
request->match_sets,
n_match_sets);
if (ret < 0)
return ret;
if (!n_match_sets) {
ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
ALL_BSS_FILTER, 0);
if (ret < 0)
return ret;
} else {
ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
MATCHED_SSID_FILTER, 0);
if (ret < 0)
return ret;
}
if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD,
ar->fw_capabilities)) {
if (request->min_rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF)
rssi_thold = 0;
else if (request->min_rssi_thold < -127)
rssi_thold = -127;
else
rssi_thold = request->min_rssi_thold;
ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx,
rssi_thold);
if (ret) {
ath6kl_err("failed to set RSSI threshold for scan\n");
return ret;
}
}
/* fw uses seconds, also make sure that it's >0 */
interval = max_t(u16, 1, request->interval / 1000);
ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
interval, interval,
vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
/* this also clears IE in fw if it's not set */
ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
WMI_FRAME_PROBE_REQ,
request->ie, request->ie_len);
if (ret) {
ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n",
ret);
return ret;
}
ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true);
if (ret)
return ret;
set_bit(SCHED_SCANNING, &vif->flags);
return 0;
}
static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy,
struct net_device *dev)
{
struct ath6kl_vif *vif = netdev_priv(dev);
bool stopped;
stopped = __ath6kl_cfg80211_sscan_stop(vif);
if (!stopped)
return -EIO;
return 0;
}
static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy,
struct net_device *dev,
const u8 *addr,
const struct cfg80211_bitrate_mask *mask)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx,
mask);
}
static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy,
struct net_device *dev,
u32 rate, u32 pkts, u32 intvl)
{
struct ath6kl *ar = ath6kl_priv(dev);
struct ath6kl_vif *vif = netdev_priv(dev);
if (vif->nw_type != INFRA_NETWORK ||
!test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities))
return -EOPNOTSUPP;
if (vif->sme_state != SME_CONNECTED)
return -ENOTCONN;
/* save this since the firmware won't report the interval */
vif->txe_intvl = intvl;
return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx,
rate, pkts, intvl);
}
static const struct ieee80211_txrx_stypes
ath6kl_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)
},
};
static struct cfg80211_ops ath6kl_cfg80211_ops = {
.add_virtual_intf = ath6kl_cfg80211_add_iface,
.del_virtual_intf = ath6kl_cfg80211_del_iface,
.change_virtual_intf = ath6kl_cfg80211_change_iface,
.scan = ath6kl_cfg80211_scan,
.connect = ath6kl_cfg80211_connect,
.disconnect = ath6kl_cfg80211_disconnect,
.add_key = ath6kl_cfg80211_add_key,
.get_key = ath6kl_cfg80211_get_key,
.del_key = ath6kl_cfg80211_del_key,
.set_default_key = ath6kl_cfg80211_set_default_key,
.set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
.set_tx_power = ath6kl_cfg80211_set_txpower,
.get_tx_power = ath6kl_cfg80211_get_txpower,
.set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
.join_ibss = ath6kl_cfg80211_join_ibss,
.leave_ibss = ath6kl_cfg80211_leave_ibss,
.get_station = ath6kl_get_station,
.set_pmksa = ath6kl_set_pmksa,
.del_pmksa = ath6kl_del_pmksa,
.flush_pmksa = ath6kl_flush_pmksa,
CFG80211_TESTMODE_CMD(ath6kl_tm_cmd)
#ifdef CONFIG_PM
.suspend = __ath6kl_cfg80211_suspend,
.resume = __ath6kl_cfg80211_resume,
#endif
.start_ap = ath6kl_start_ap,
.change_beacon = ath6kl_change_beacon,
.stop_ap = ath6kl_stop_ap,
.del_station = ath6kl_del_station,
.change_station = ath6kl_change_station,
.remain_on_channel = ath6kl_remain_on_channel,
.cancel_remain_on_channel = ath6kl_cancel_remain_on_channel,
.mgmt_tx = ath6kl_mgmt_tx,
.mgmt_frame_register = ath6kl_mgmt_frame_register,
.sched_scan_start = ath6kl_cfg80211_sscan_start,
.sched_scan_stop = ath6kl_cfg80211_sscan_stop,
.set_bitrate_mask = ath6kl_cfg80211_set_bitrate,
.set_cqm_txe_config = ath6kl_cfg80211_set_txe_config,
};
void ath6kl_cfg80211_stop(struct ath6kl_vif *vif)
{
ath6kl_cfg80211_sscan_disable(vif);
switch (vif->sme_state) {
case SME_DISCONNECTED:
break;
case SME_CONNECTING:
cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0,
NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE,
GFP_KERNEL);
break;
case SME_CONNECTED:
cfg80211_disconnected(vif->ndev, 0, NULL, 0, true, GFP_KERNEL);
break;
}
if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
(test_bit(CONNECTED, &vif->flags) ||
test_bit(CONNECT_PEND, &vif->flags)))
ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
vif->sme_state = SME_DISCONNECTED;
clear_bit(CONNECTED, &vif->flags);
clear_bit(CONNECT_PEND, &vif->flags);
/* Stop netdev queues, needed during recovery */
netif_stop_queue(vif->ndev);
netif_carrier_off(vif->ndev);
/* disable scanning */
if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF,
0, 0, 0, 0, 0, 0, 0, 0, 0) != 0)
ath6kl_warn("failed to disable scan during stop\n");
ath6kl_cfg80211_scan_complete_event(vif, true);
}
void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
{
struct ath6kl_vif *vif;
vif = ath6kl_vif_first(ar);
if (!vif && ar->state != ATH6KL_STATE_RECOVERY) {
/* save the current power mode before enabling power save */
ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0)
ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n");
return;
}
/*
* FIXME: we should take ar->list_lock to protect changes in the
* vif_list, but that's not trivial to do as ath6kl_cfg80211_stop()
* sleeps.
*/
list_for_each_entry(vif, &ar->vif_list, list)
ath6kl_cfg80211_stop(vif);
}
static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct ath6kl *ar = wiphy_priv(wiphy);
u32 rates[IEEE80211_NUM_BANDS];
int ret, i;
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
"cfg reg_notify %c%c%s%s initiator %d hint_type %d\n",
request->alpha2[0], request->alpha2[1],
request->intersect ? " intersect" : "",
request->processed ? " processed" : "",
request->initiator, request->user_reg_hint_type);
if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE)
return;
ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2);
if (ret) {
ath6kl_err("failed to set regdomain: %d\n", ret);
return;
}
/*
* Firmware will apply the regdomain change only after a scan is
* issued and it will send a WMI_REGDOMAIN_EVENTID when it has been
* changed.
*/
for (i = 0; i < IEEE80211_NUM_BANDS; i++)
if (wiphy->bands[i])
rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false,
false, 0, ATH6KL_FG_SCAN_INTERVAL,
0, NULL, false, rates);
if (ret) {
ath6kl_err("failed to start scan for a regdomain change: %d\n",
ret);
return;
}
}
static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif)
{
vif->aggr_cntxt = aggr_init(vif);
if (!vif->aggr_cntxt) {
ath6kl_err("failed to initialize aggr\n");
return -ENOMEM;
}
setup_timer(&vif->disconnect_timer, disconnect_timer_handler,
(unsigned long) vif->ndev);
setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer,
(unsigned long) vif);
set_bit(WMM_ENABLED, &vif->flags);
spin_lock_init(&vif->if_lock);
INIT_LIST_HEAD(&vif->mc_filter);
return 0;
}
void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready)
{
static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
bool discon_issued;
netif_stop_queue(vif->ndev);
clear_bit(WLAN_ENABLED, &vif->flags);
if (wmi_ready) {
discon_issued = test_bit(CONNECTED, &vif->flags) ||
test_bit(CONNECT_PEND, &vif->flags);
ath6kl_disconnect(vif);
del_timer(&vif->disconnect_timer);
if (discon_issued)
ath6kl_disconnect_event(vif, DISCONNECT_CMD,
(vif->nw_type & AP_NETWORK) ?
bcast_mac : vif->bssid,
0, NULL, 0);
}
if (vif->scan_req) {
cfg80211_scan_done(vif->scan_req, true);
vif->scan_req = NULL;
}
/* need to clean up enhanced bmiss detection fw state */
ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
}
void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif)
{
struct ath6kl *ar = vif->ar;
struct ath6kl_mc_filter *mc_filter, *tmp;
aggr_module_destroy(vif->aggr_cntxt);
ar->avail_idx_map |= BIT(vif->fw_vif_idx);
if (vif->nw_type == ADHOC_NETWORK)
ar->ibss_if_active = false;
list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
list_del(&mc_filter->list);
kfree(mc_filter);
}
unregister_netdevice(vif->ndev);
ar->num_vif--;
}
struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name,
unsigned char name_assign_type,
enum nl80211_iftype type,
u8 fw_vif_idx, u8 nw_type)
{
struct net_device *ndev;
struct ath6kl_vif *vif;
ndev = alloc_netdev(sizeof(*vif), name, name_assign_type, ether_setup);
if (!ndev)
return NULL;
vif = netdev_priv(ndev);
ndev->ieee80211_ptr = &vif->wdev;
vif->wdev.wiphy = ar->wiphy;
vif->ar = ar;
vif->ndev = ndev;
SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy));
vif->wdev.netdev = ndev;
vif->wdev.iftype = type;
vif->fw_vif_idx = fw_vif_idx;
vif->nw_type = nw_type;
vif->next_mode = nw_type;
vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL;
vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME;
vif->bg_scan_period = 0;
vif->htcap[IEEE80211_BAND_2GHZ].ht_enable = true;
vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true;
memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
if (fw_vif_idx != 0) {
ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) |
0x2;
if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR,
ar->fw_capabilities))
ndev->dev_addr[4] ^= 0x80;
}
init_netdev(ndev);
ath6kl_init_control_info(vif);
if (ath6kl_cfg80211_vif_init(vif))
goto err;
if (register_netdevice(ndev))
goto err;
ar->avail_idx_map &= ~BIT(fw_vif_idx);
vif->sme_state = SME_DISCONNECTED;
set_bit(WLAN_ENABLED, &vif->flags);
ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
if (type == NL80211_IFTYPE_ADHOC)
ar->ibss_if_active = true;
spin_lock_bh(&ar->list_lock);
list_add_tail(&vif->list, &ar->vif_list);
spin_unlock_bh(&ar->list_lock);
return &vif->wdev;
err:
aggr_module_destroy(vif->aggr_cntxt);
free_netdev(ndev);
return NULL;
}
#ifdef CONFIG_PM
static const struct wiphy_wowlan_support ath6kl_wowlan_support = {
.flags = 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,
.n_patterns = WOW_MAX_FILTERS_PER_LIST,
.pattern_min_len = 1,
.pattern_max_len = WOW_PATTERN_SIZE,
};
#endif
int ath6kl_cfg80211_init(struct ath6kl *ar)
{
struct wiphy *wiphy = ar->wiphy;
bool band_2gig = false, band_5gig = false, ht = false;
int ret;
wiphy->mgmt_stypes = ath6kl_mgmt_stypes;
wiphy->max_remain_on_channel_duration = 5000;
/* set device pointer for wiphy */
set_wiphy_dev(wiphy, ar->dev);
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC) |
BIT(NL80211_IFTYPE_AP);
if (ar->p2p) {
wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) |
BIT(NL80211_IFTYPE_P2P_CLIENT);
}
if (config_enabled(CONFIG_ATH6KL_REGDOMAIN) &&
test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) {
wiphy->reg_notifier = ath6kl_cfg80211_reg_notify;
ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS;
}
/* max num of ssids that can be probed during scanning */
wiphy->max_scan_ssids = MAX_PROBED_SSIDS;
/* max num of ssids that can be matched after scan */
if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST,
ar->fw_capabilities))
wiphy->max_match_sets = MAX_PROBED_SSIDS;
wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */
switch (ar->hw.cap) {
case WMI_11AN_CAP:
ht = true;
case WMI_11A_CAP:
band_5gig = true;
break;
case WMI_11GN_CAP:
ht = true;
case WMI_11G_CAP:
band_2gig = true;
break;
case WMI_11AGN_CAP:
ht = true;
case WMI_11AG_CAP:
band_2gig = true;
band_5gig = true;
break;
default:
ath6kl_err("invalid phy capability!\n");
return -EINVAL;
}
/*
* Even if the fw has HT support, advertise HT cap only when
* the firmware has support to override RSN capability, otherwise
* 4-way handshake would fail.
*/
if (!(ht &&
test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
ar->fw_capabilities))) {
ath6kl_band_2ghz.ht_cap.cap = 0;
ath6kl_band_2ghz.ht_cap.ht_supported = false;
ath6kl_band_5ghz.ht_cap.cap = 0;
ath6kl_band_5ghz.ht_cap.ht_supported = false;
}
if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,
ar->fw_capabilities)) {
ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff;
ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff;
} else {
ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
}
if (band_2gig)
wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz;
if (band_5gig)
wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz;
wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
wiphy->cipher_suites = cipher_suites;
wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
#ifdef CONFIG_PM
wiphy->wowlan = &ath6kl_wowlan_support;
#endif
wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS;
ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
WIPHY_FLAG_HAVE_AP_SME |
WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities))
ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT,
ar->fw_capabilities))
ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
ar->wiphy->probe_resp_offload =
NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
ret = wiphy_register(wiphy);
if (ret < 0) {
ath6kl_err("couldn't register wiphy device\n");
return ret;
}
ar->wiphy_registered = true;
return 0;
}
void ath6kl_cfg80211_cleanup(struct ath6kl *ar)
{
wiphy_unregister(ar->wiphy);
ar->wiphy_registered = false;
}
struct ath6kl *ath6kl_cfg80211_create(void)
{
struct ath6kl *ar;
struct wiphy *wiphy;
/* create a new wiphy for use with cfg80211 */
wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
if (!wiphy) {
ath6kl_err("couldn't allocate wiphy device\n");
return NULL;
}
ar = wiphy_priv(wiphy);
ar->wiphy = wiphy;
return ar;
}
/* Note: ar variable must not be accessed after calling this! */
void ath6kl_cfg80211_destroy(struct ath6kl *ar)
{
int i;
for (i = 0; i < AP_MAX_NUM_STA; i++)
kfree(ar->sta_list[i].aggr_conn);
wiphy_free(ar->wiphy);
}
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