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brcmfmac: Add tx p2p off-channel support.

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With this patch off-channel action frames can be transmitted. This
is needed for p2p when two devices need to find each other while
using different social channels.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Hante Meuleman 2013-02-08 15:54:02 +01:00 committed by John W. Linville
parent 4b3a89de8a
commit 6eda4e2c54
3 changed files with 707 additions and 93 deletions
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673
drivers/net/wireless/brcm80211/brcmfmac/p2p.c
View File

@ -43,6 +43,9 @@
#define SOCIAL_CHAN_1 1
#define SOCIAL_CHAN_2 6
#define SOCIAL_CHAN_3 11
#define IS_P2P_SOCIAL_CHANNEL(channel) ((channel == SOCIAL_CHAN_1) || \
(channel == SOCIAL_CHAN_2) || \
(channel == SOCIAL_CHAN_3))
#define SOCIAL_CHAN_CNT 3
#define AF_PEER_SEARCH_CNT 2
@ -64,11 +67,12 @@
#define P2P_AF_MIN_DWELL_TIME 100
#define P2P_AF_MED_DWELL_TIME 400
#define P2P_AF_LONG_DWELL_TIME 1000
#define P2P_AF_TX_MAX_RETRY 5
#define P2P_AF_TX_MAX_RETRY 1
#define P2P_AF_MAX_WAIT_TIME 2000
#define P2P_INVALID_CHANNEL -1
#define P2P_CHANNEL_SYNC_RETRY 5
#define P2P_AF_FRM_SCAN_MAX_WAIT 1500
#define P2P_DEFAULT_SLEEP_TIME_VSDB 200
/* WiFi P2P Public Action Frame OUI Subtypes */
#define P2P_PAF_GON_REQ 0 /* Group Owner Negotiation Req */
@ -196,13 +200,15 @@ struct brcmf_p2psd_gas_pub_act_frame {
/**
* struct brcmf_config_af_params - Action Frame Parameters for tx.
*
* @max_tx_retry: max tx retry count if tx no ack.
* @mpc_onoff: To make sure to send successfully action frame, we have to
* turn off mpc 0: off, 1: on, (-1): do nothing
* @search_channel: 1: search peer's channel to send af
* extra_listen: keep the dwell time to get af response frame.
*/
struct brcmf_config_af_params {
s32 max_tx_retry;
s32 mpc_onoff;
bool search_channel;
bool extra_listen;
};
/**
@ -415,6 +421,30 @@ static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len)
#endif
/**
* brcmf_p2p_chnr_to_chspec() - convert channel number to chanspec.
*
* @channel: channel number
*/
static u16 brcmf_p2p_chnr_to_chspec(u16 channel)
{
u16 chanspec;
chanspec = channel & WL_CHANSPEC_CHAN_MASK;
if (channel <= CH_MAX_2G_CHANNEL)
chanspec |= WL_CHANSPEC_BAND_2G;
else
chanspec |= WL_CHANSPEC_BAND_5G;
chanspec |= WL_CHANSPEC_BW_20;
chanspec |= WL_CHANSPEC_CTL_SB_NONE;
return chanspec;
}
/**
* brcmf_p2p_set_firmware() - prepare firmware for peer-to-peer operation.
*
@ -811,6 +841,43 @@ exit:
return err;
}
/**
* brcmf_p2p_find_listen_channel() - find listen channel in ie string.
*
* @ie: string of information elements.
* @ie_len: length of string.
*
* Scan ie for p2p ie and look for attribute 6 channel. If available determine
* channel and return it.
*/
static s32 brcmf_p2p_find_listen_channel(const u8 *ie, u32 ie_len)
{
u8 channel_ie[5];
s32 listen_channel;
s32 err;
err = cfg80211_get_p2p_attr(ie, ie_len,
IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
channel_ie, sizeof(channel_ie));
if (err < 0)
return err;
/* listen channel subel length format: */
/* 3(country) + 1(op. class) + 1(chan num) */
listen_channel = (s32)channel_ie[3 + 1];
if (listen_channel == SOCIAL_CHAN_1 ||
listen_channel == SOCIAL_CHAN_2 ||
listen_channel == SOCIAL_CHAN_3) {
brcmf_dbg(INFO, "Found my Listen Channel %d\n", listen_channel);
return listen_channel;
}
return -EPERM;
}
/**
* brcmf_p2p_scan_prep() - prepare scan based on request.
*
@ -831,12 +898,13 @@ int brcmf_p2p_scan_prep(struct wiphy *wiphy,
if (brcmf_p2p_scan_is_p2p_request(request)) {
/* find my listen channel */
err = cfg80211_get_p2p_attr(request->ie, request->ie_len,
IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
&p2p->listen_channel, 1);
err = brcmf_p2p_find_listen_channel(request->ie,
request->ie_len);
if (err < 0)
return err;
p2p->afx_hdl.my_listen_chan = err;
clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n");
@ -859,13 +927,12 @@ int brcmf_p2p_scan_prep(struct wiphy *wiphy,
* brcmf_p2p_discover_listen() - set firmware to discover listen state.
*
* @p2p: p2p device.
* @freq: center frequency for discover listen.
* #@duration: time in ms to stay on channel.
* @channel: channel nr for discover listen.
* @duration: time in ms to stay on channel.
*
*/
static s32
brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p,
struct ieee80211_channel *channel, u32 duration)
brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p, u16 channel, u32 duration)
{
struct brcmf_cfg80211_vif *vif;
s32 err = 0;
@ -884,7 +951,7 @@ brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p,
goto exit;
}
chanspec = channel_to_chanspec(channel);
chanspec = brcmf_p2p_chnr_to_chspec(channel);
err = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_LISTEN,
chanspec, (u16)duration);
if (!err) {
@ -911,15 +978,16 @@ int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
struct brcmf_p2p_info *p2p = &cfg->p2p;
s32 err;
u16 channel_nr;
brcmf_dbg(TRACE, "Enter, channel: %d, duration ms (%d)\n",
ieee80211_frequency_to_channel(channel->center_freq),
channel_nr = ieee80211_frequency_to_channel(channel->center_freq);
brcmf_dbg(TRACE, "Enter, channel: %d, duration ms (%d)\n", channel_nr,
duration);
err = brcmf_p2p_enable_discovery(p2p);
if (err)
goto exit;
err = brcmf_p2p_discover_listen(p2p, channel, duration);
err = brcmf_p2p_discover_listen(p2p, channel_nr, duration);
if (err)
goto exit;
@ -949,11 +1017,20 @@ int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp,
brcmf_dbg(TRACE, "Enter\n");
if (test_and_clear_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN,
&p2p->status))
&p2p->status)) {
if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
&p2p->status)) {
clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
&p2p->status);
brcmf_dbg(INFO, "Listen DONE, wake up wait_next_af\n");
complete(&p2p->wait_next_af);
}
cfg80211_remain_on_channel_expired(&ifp->vif->wdev,
p2p->remain_on_channel_cookie,
&p2p->remain_on_channel,
GFP_KERNEL);
}
return 0;
}
@ -973,6 +1050,285 @@ void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp)
}
/**
* brcmf_p2p_act_frm_search() - search function for action frame.
*
* @p2p: p2p device.
* channel: channel on which action frame is to be trasmitted.
*
* search function to reach at common channel to send action frame. When
* channel is 0 then all social channels will be used to send af
*/
static s32 brcmf_p2p_act_frm_search(struct brcmf_p2p_info *p2p, u16 channel)
{
s32 err;
u32 channel_cnt;
u16 *default_chan_list;
u32 i;
brcmf_dbg(TRACE, "Enter\n");
if (channel)
channel_cnt = AF_PEER_SEARCH_CNT;
else
channel_cnt = SOCIAL_CHAN_CNT;
default_chan_list = kzalloc(channel_cnt * sizeof(*default_chan_list),
GFP_KERNEL);
if (default_chan_list == NULL) {
brcmf_err("channel list allocation failed\n");
err = -ENOMEM;
goto exit;
}
if (channel) {
/* insert same channel to the chan_list */
for (i = 0; i < channel_cnt; i++)
default_chan_list[i] =
brcmf_p2p_chnr_to_chspec(channel);
} else {
default_chan_list[0] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_1);
default_chan_list[1] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_2);
default_chan_list[2] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_3);
}
err = brcmf_p2p_escan(p2p, channel_cnt, default_chan_list,
WL_P2P_DISC_ST_SEARCH, WL_ESCAN_ACTION_START,
P2PAPI_BSSCFG_DEVICE);
kfree(default_chan_list);
exit:
return err;
}
/**
* brcmf_p2p_afx_handler() - afx worker thread.
*
* @work:
*
*/
static void brcmf_p2p_afx_handler(struct work_struct *work)
{
struct afx_hdl *afx_hdl = container_of(work, struct afx_hdl, afx_work);
struct brcmf_p2p_info *p2p = container_of(afx_hdl,
struct brcmf_p2p_info,
afx_hdl);
s32 err;
if (!afx_hdl->is_active)
return;
if (afx_hdl->is_listen && afx_hdl->my_listen_chan)
/* 100ms ~ 300ms */
err = brcmf_p2p_discover_listen(p2p, afx_hdl->my_listen_chan,
100 * (1 + (random32() % 3)));
else
err = brcmf_p2p_act_frm_search(p2p, afx_hdl->peer_listen_chan);
if (err) {
brcmf_err("ERROR occurred! value is (%d)\n", err);
if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
&p2p->status))
complete(&afx_hdl->act_frm_scan);
}
}
/**
* brcmf_p2p_af_searching_channel() - search channel.
*
* @p2p: p2p device info struct.
*
*/
static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p)
{
struct afx_hdl *afx_hdl = &p2p->afx_hdl;
struct brcmf_cfg80211_vif *pri_vif;
unsigned long duration;
s32 retry;
brcmf_dbg(TRACE, "Enter\n");
pri_vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
INIT_COMPLETION(afx_hdl->act_frm_scan);
set_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status);
afx_hdl->is_active = true;
afx_hdl->peer_chan = P2P_INVALID_CHANNEL;
/* Loop to wait until we find a peer's channel or the
* pending action frame tx is cancelled.
*/
retry = 0;
duration = msecs_to_jiffies(P2P_AF_FRM_SCAN_MAX_WAIT);
while ((retry < P2P_CHANNEL_SYNC_RETRY) &&
(afx_hdl->peer_chan == P2P_INVALID_CHANNEL)) {
afx_hdl->is_listen = false;
brcmf_dbg(TRACE, "Scheduling action frame for sending.. (%d)\n",
retry);
/* search peer on peer's listen channel */
schedule_work(&afx_hdl->afx_work);
wait_for_completion_timeout(&afx_hdl->act_frm_scan, duration);
if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) ||
(!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
&p2p->status)))
break;
if (afx_hdl->my_listen_chan) {
brcmf_dbg(TRACE, "Scheduling listen peer, channel=%d\n",
afx_hdl->my_listen_chan);
/* listen on my listen channel */
afx_hdl->is_listen = true;
schedule_work(&afx_hdl->afx_work);
wait_for_completion_timeout(&afx_hdl->act_frm_scan,
duration);
}
if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) ||
(!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
&p2p->status)))
break;
retry++;
/* if sta is connected or connecting, sleep for a while before
* retry af tx or finding a peer
*/
if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &pri_vif->sme_state) ||
test_bit(BRCMF_VIF_STATUS_CONNECTING, &pri_vif->sme_state))
msleep(P2P_DEFAULT_SLEEP_TIME_VSDB);
}
brcmf_dbg(TRACE, "Completed search/listen peer_chan=%d\n",
afx_hdl->peer_chan);
afx_hdl->is_active = false;
clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status);
return afx_hdl->peer_chan;
}
/**
* brcmf_p2p_scan_finding_common_channel() - was escan used for finding channel
*
* @cfg: common configuration struct.
* @bi: bss info struct, result from scan.
*
*/
bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg,
struct brcmf_bss_info_le *bi)
{
struct brcmf_p2p_info *p2p = &cfg->p2p;
struct afx_hdl *afx_hdl = &p2p->afx_hdl;
u8 *ie;
s32 err;
u8 p2p_dev_addr[ETH_ALEN];
if (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status))
return false;
if (bi == NULL) {
brcmf_dbg(TRACE, "ACTION FRAME SCAN Done\n");
if (afx_hdl->peer_chan == P2P_INVALID_CHANNEL)
complete(&afx_hdl->act_frm_scan);
return true;
}
ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
memset(p2p_dev_addr, 0, sizeof(p2p_dev_addr));
err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length),
IEEE80211_P2P_ATTR_DEVICE_INFO,
p2p_dev_addr, sizeof(p2p_dev_addr));
if (err < 0)
err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length),
IEEE80211_P2P_ATTR_DEVICE_ID,
p2p_dev_addr, sizeof(p2p_dev_addr));
if ((err >= 0) &&
(!memcmp(p2p_dev_addr, afx_hdl->tx_dst_addr, ETH_ALEN))) {
afx_hdl->peer_chan = bi->ctl_ch ? bi->ctl_ch :
CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
brcmf_dbg(TRACE, "ACTION FRAME SCAN : Peer %pM found, channel : %d\n",
afx_hdl->tx_dst_addr, afx_hdl->peer_chan);
complete(&afx_hdl->act_frm_scan);
}
return true;
}
/**
* brcmf_p2p_stop_wait_next_action_frame() - finish scan if af tx complete.
*
* @cfg: common configuration struct.
*
*/
static void
brcmf_p2p_stop_wait_next_action_frame(struct brcmf_cfg80211_info *cfg)
{
struct brcmf_p2p_info *p2p = &cfg->p2p;
struct net_device *ndev = cfg->escan_info.ndev;
if (test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status) &&
(test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status) ||
test_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status))) {
brcmf_dbg(TRACE, "*** Wake UP ** abort actframe iovar\n");
/* if channel is not zero, "actfame" uses off channel scan.
* So abort scan for off channel completion.
*/
if (p2p->af_sent_channel)
brcmf_notify_escan_complete(cfg, ndev, true, true);
} else if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
&p2p->status)) {
brcmf_dbg(TRACE, "*** Wake UP ** abort listen for next af frame\n");
/* So abort scan to cancel listen */
brcmf_notify_escan_complete(cfg, ndev, true, true);
}
}
/**
* brcmf_p2p_gon_req_collision() - Check if go negotiaton collission
*
* @p2p: p2p device info struct.
*
* return true if recevied action frame is to be dropped.
*/
static bool
brcmf_p2p_gon_req_collision(struct brcmf_p2p_info *p2p, u8 *mac)
{
struct brcmf_cfg80211_info *cfg = p2p->cfg;
struct brcmf_if *ifp;
brcmf_dbg(TRACE, "Enter\n");
if (!test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) ||
!p2p->gon_req_action)
return false;
brcmf_dbg(TRACE, "GO Negotiation Request COLLISION !!!\n");
/* if sa(peer) addr is less than da(my) addr, then this device
* process peer's gon request and block to send gon req.
* if not (sa addr > da addr),
* this device will process gon request and drop gon req of peer.
*/
ifp = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->ifp;
if (memcmp(mac, ifp->mac_addr, ETH_ALEN) < 0) {
brcmf_dbg(INFO, "Block transmit gon req !!!\n");
p2p->block_gon_req_tx = true;
/* if we are finding a common channel for sending af,
* do not scan more to block to send current gon req
*/
if (test_and_clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
&p2p->status))
complete(&p2p->afx_hdl.act_frm_scan);
if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
&p2p->status))
brcmf_p2p_stop_wait_next_action_frame(cfg);
return false;
}
/* drop gon request of peer to process gon request by this device. */
brcmf_dbg(INFO, "Drop received gon req !!!\n");
return true;
}
/**
* brcmf_p2p_notify_action_frame_rx() - received action frame.
*
@ -985,14 +1341,20 @@ int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
const struct brcmf_event_msg *e,
void *data)
{
struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
struct brcmf_p2p_info *p2p = &cfg->p2p;
struct afx_hdl *afx_hdl = &p2p->afx_hdl;
struct wireless_dev *wdev;
u32 mgmt_frame_len = e->datalen - sizeof(struct brcmf_rx_mgmt_data);
struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data;
u8 *frame = (u8 *)(rxframe + 1);
struct brcmf_p2p_pub_act_frame *act_frm;
struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm;
u16 chanspec = be16_to_cpu(rxframe->chanspec);
struct ieee80211_mgmt *mgmt_frame;
s32 err;
s32 freq;
u16 mgmt_type;
u8 action;
/* Check if wpa_supplicant has registered for this frame */
brcmf_dbg(INFO, "ifp->vif->mgmt_rx_reg %04x\n", ifp->vif->mgmt_rx_reg);
@ -1000,7 +1362,46 @@ int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
if ((ifp->vif->mgmt_rx_reg & BIT(mgmt_type)) == 0)
return 0;
brcmf_p2p_print_actframe(false, (u8 *)(rxframe + 1), mgmt_frame_len);
brcmf_p2p_print_actframe(false, frame, mgmt_frame_len);
action = P2P_PAF_SUBTYPE_INVALID;
if (brcmf_p2p_is_pub_action(frame, mgmt_frame_len)) {
act_frm = (struct brcmf_p2p_pub_act_frame *)frame;
action = act_frm->subtype;
if ((action == P2P_PAF_GON_REQ) &&
(brcmf_p2p_gon_req_collision(p2p, (u8 *)e->addr))) {
if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
&p2p->status) &&
(memcmp(afx_hdl->tx_dst_addr, e->addr,
ETH_ALEN) == 0)) {
afx_hdl->peer_chan = CHSPEC_CHANNEL(chanspec);
brcmf_dbg(INFO, "GON request: Peer found, channel=%d\n",
afx_hdl->peer_chan);
complete(&afx_hdl->act_frm_scan);
}
return 0;
}
/* After complete GO Negotiation, roll back to mpc mode */
if ((action == P2P_PAF_GON_CONF) ||
(action == P2P_PAF_PROVDIS_RSP))
brcmf_set_mpc(ifp->ndev, 1);
if (action == P2P_PAF_GON_CONF) {
brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n");
clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
}
} else if (brcmf_p2p_is_gas_action(frame, mgmt_frame_len)) {
sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame;
action = sd_act_frm->action;
}
if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) &&
(p2p->next_af_subtype == action)) {
brcmf_dbg(TRACE, "We got a right next frame! (%d)\n", action);
clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
&p2p->status);
/* Stop waiting for next AF. */
brcmf_p2p_stop_wait_next_action_frame(cfg);
}
mgmt_frame = kzalloc(offsetof(struct ieee80211_mgmt, u) +
mgmt_frame_len, GFP_KERNEL);
@ -1009,13 +1410,11 @@ int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
return -ENOMEM;
}
memcpy(mgmt_frame->da, ifp->mac_addr, ETH_ALEN);
err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mgmt_frame->bssid,
ETH_ALEN);
if (err < 0)
brcmf_err("BRCMF_C_GET_BSSID error %d\n", err);
brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mgmt_frame->bssid,
ETH_ALEN);
memcpy(mgmt_frame->sa, e->addr, ETH_ALEN);
mgmt_frame->frame_control = cpu_to_le16(IEEE80211_STYPE_ACTION);
memcpy(&mgmt_frame->u, (u8 *)(rxframe + 1), mgmt_frame_len);
memcpy(&mgmt_frame->u, frame, mgmt_frame_len);
mgmt_frame_len += offsetof(struct ieee80211_mgmt, u);
freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec),
@ -1046,15 +1445,29 @@ int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp,
struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
struct brcmf_p2p_info *p2p = &cfg->p2p;
brcmf_dbg(INFO, "Enter: status %d\n", e->status);
brcmf_dbg(INFO, "Enter: event %s, status=%d\n",
e->event_code == BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE ?
"ACTION_FRAME_OFF_CHAN_COMPLETE" : "ACTION_FRAME_COMPLETE",
e->status);
if (e->status == BRCMF_E_STATUS_SUCCESS)
set_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status);
else
set_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status);
/* for now complete the receiver process here !! */
complete(&p2p->send_af_done);
if (!test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status))
return 0;
if (e->event_code == BRCMF_E_ACTION_FRAME_COMPLETE) {
if (e->status == BRCMF_E_STATUS_SUCCESS)
set_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
&p2p->status);
else {
set_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status);
/* If there is no ack, we don't need to wait for
* WLC_E_ACTION_FRAME_OFFCHAN_COMPLETE event
*/
brcmf_p2p_stop_wait_next_action_frame(cfg);
}
} else {
complete(&p2p->send_af_done);
}
return 0;
}
@ -1080,6 +1493,7 @@ static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p,
brcmf_dbg(TRACE, "Enter\n");
INIT_COMPLETION(p2p->send_af_done);
clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status);
clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status);
@ -1091,6 +1505,9 @@ static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p,
goto exit;
}
p2p->af_sent_channel = le32_to_cpu(af_params->channel);
p2p->af_tx_sent_jiffies = jiffies;
timeout = wait_for_completion_timeout(&p2p->send_af_done,
msecs_to_jiffies(P2P_AF_MAX_WAIT_TIME));
@ -1126,16 +1543,21 @@ static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg,
struct brcmf_fil_action_frame_le *action_frame;
struct brcmf_p2p_pub_act_frame *act_frm;
s32 err = 0;
u16 ie_len;
action_frame = &af_params->action_frame;
act_frm = (struct brcmf_p2p_pub_act_frame *)(action_frame->data);
config_af_params->extra_listen = true;
switch (act_frm->subtype) {
case P2P_PAF_GON_REQ:
brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status set\n");
set_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
config_af_params->mpc_onoff = 0;
config_af_params->search_channel = true;
p2p->next_af_subtype = act_frm->subtype + 1;
p2p->gon_req_action = true;
/* increase dwell time to wait for RESP frame */
af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME);
break;
@ -1152,8 +1574,10 @@ static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg,
config_af_params->mpc_onoff = 1;
/* minimize dwell time */
af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME);
config_af_params->extra_listen = false;
break;
case P2P_PAF_INVITE_REQ:
config_af_params->search_channel = true;
p2p->next_af_subtype = act_frm->subtype + 1;
/* increase dwell time */
af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME);
@ -1161,8 +1585,10 @@ static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg,
case P2P_PAF_INVITE_RSP:
/* minimize dwell time */
af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME);
config_af_params->extra_listen = false;
break;
case P2P_PAF_DEVDIS_REQ:
config_af_params->search_channel = true;
p2p->next_af_subtype = act_frm->subtype + 1;
/* maximize dwell time to wait for RESP frame */
af_params->dwell_time = cpu_to_le32(P2P_AF_LONG_DWELL_TIME);
@ -1170,8 +1596,15 @@ static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg,
case P2P_PAF_DEVDIS_RSP:
/* minimize dwell time */
af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME);
config_af_params->extra_listen = false;
break;
case P2P_PAF_PROVDIS_REQ:
ie_len = le16_to_cpu(action_frame->len) -
offsetof(struct brcmf_p2p_pub_act_frame, elts);
if (cfg80211_get_p2p_attr(&act_frm->elts[0], ie_len,
IEEE80211_P2P_ATTR_GROUP_ID,
NULL, 0) < 0)
config_af_params->search_channel = true;
config_af_params->mpc_onoff = 0;
p2p->next_af_subtype = act_frm->subtype + 1;
/* increase dwell time to wait for RESP frame */
@ -1182,6 +1615,7 @@ static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg,
p2p->next_af_subtype = P2P_PAF_GON_REQ;
/* increase dwell time to MED level */
af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME);
config_af_params->extra_listen = false;
break;
default:
brcmf_err("Unknown p2p pub act frame subtype: %d\n",
@ -1205,11 +1639,14 @@ bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
struct brcmf_p2p_info *p2p = &cfg->p2p;
struct brcmf_fil_action_frame_le *action_frame;
struct brcmf_config_af_params config_af_params;
struct afx_hdl *afx_hdl = &p2p->afx_hdl;
u16 action_frame_len;
bool ack = false;
u8 category;
u8 action;
s32 tx_retry;
s32 extra_listen_time;
uint delta_ms;
action_frame = &af_params->action_frame;
action_frame_len = le16_to_cpu(action_frame->len);
@ -1226,10 +1663,12 @@ bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
/* initialize variables */
p2p->next_af_subtype = P2P_PAF_SUBTYPE_INVALID;
p2p->gon_req_action = false;
/* config parameters */
config_af_params.max_tx_retry = P2P_AF_TX_MAX_RETRY;
config_af_params.mpc_onoff = -1;
config_af_params.search_channel = false;
config_af_params.extra_listen = false;
if (brcmf_p2p_is_pub_action(action_frame->data, action_frame_len)) {
/* p2p public action frame process */
@ -1243,6 +1682,9 @@ bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
/* service discovery process */
if (action == P2PSD_ACTION_ID_GAS_IREQ ||
action == P2PSD_ACTION_ID_GAS_CREQ) {
/* configure service discovery query frame */
config_af_params.search_channel = true;
/* save next af suptype to cancel */
/* remaining dwell time */
p2p->next_af_subtype = action + 1;
@ -1268,24 +1710,114 @@ bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
return false;
}
/* if connecting on primary iface, sleep for a while before sending
* af tx for VSDB
*/
if (test_bit(BRCMF_VIF_STATUS_CONNECTING,
&p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->sme_state))
msleep(50);
/* if scan is ongoing, abort current scan. */
if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
brcmf_abort_scanning(cfg);
memcpy(afx_hdl->tx_dst_addr, action_frame->da, ETH_ALEN);
/* To make sure to send successfully action frame, turn off mpc */
if (config_af_params.mpc_onoff == 0)
brcmf_set_mpc(ndev, 0);
/* if failed, retry it. tx_retry_max value is configure by .... */
/* set status and destination address before sending af */
if (p2p->next_af_subtype != P2P_PAF_SUBTYPE_INVALID) {
/* set status to cancel the remained dwell time in rx process */
set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status);
}
p2p->af_sent_channel = 0;
set_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status);
/* validate channel and p2p ies */
if (config_af_params.search_channel &&
IS_P2P_SOCIAL_CHANNEL(le32_to_cpu(af_params->channel)) &&
p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->saved_ie.probe_req_ie_len) {
afx_hdl = &p2p->afx_hdl;
afx_hdl->peer_listen_chan = le32_to_cpu(af_params->channel);
if (brcmf_p2p_af_searching_channel(p2p) ==
P2P_INVALID_CHANNEL) {
brcmf_err("Couldn't find peer's channel.\n");
goto exit;
}
/* Abort scan even for VSDB scenarios. Scan gets aborted in
* firmware but after the check of piggyback algorithm. To take
* care of current piggback algo, lets abort the scan here
* itself.
*/
brcmf_notify_escan_complete(cfg, ndev, true, true);
/* update channel */
af_params->channel = cpu_to_le32(afx_hdl->peer_chan);
}
tx_retry = 0;
while ((ack == false) && (tx_retry < config_af_params.max_tx_retry)) {
while (!p2p->block_gon_req_tx &&
(ack == false) && (tx_retry < P2P_AF_TX_MAX_RETRY)) {
ack = !brcmf_p2p_tx_action_frame(p2p, af_params);
tx_retry++;
}
if (ack == false)
if (ack == false) {
brcmf_err("Failed to send Action Frame(retry %d)\n", tx_retry);
clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
}
exit:
clear_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status);
/* WAR: sometimes dongle does not keep the dwell time of 'actframe'.
* if we coundn't get the next action response frame and dongle does
* not keep the dwell time, go to listen state again to get next action
* response frame.
*/
if (ack && config_af_params.extra_listen && !p2p->block_gon_req_tx &&
test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) &&
p2p->af_sent_channel == afx_hdl->my_listen_chan) {
delta_ms = jiffies_to_msecs(jiffies - p2p->af_tx_sent_jiffies);
if (le32_to_cpu(af_params->dwell_time) > delta_ms)
extra_listen_time = le32_to_cpu(af_params->dwell_time) -
delta_ms;
else
extra_listen_time = 0;
if (extra_listen_time > 50) {
set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
&p2p->status);
brcmf_dbg(INFO, "Wait more time! actual af time:%d, calculated extra listen:%d\n",
le32_to_cpu(af_params->dwell_time),
extra_listen_time);
extra_listen_time += 100;
if (!brcmf_p2p_discover_listen(p2p,
p2p->af_sent_channel,
extra_listen_time)) {
unsigned long duration;
extra_listen_time += 100;
duration = msecs_to_jiffies(extra_listen_time);
wait_for_completion_timeout(&p2p->wait_next_af,
duration);
}
clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
&p2p->status);
}
}
if (p2p->block_gon_req_tx) {
/* if ack is true, supplicant will wait more time(100ms).
* so we will return it as a success to get more time .
*/
p2p->block_gon_req_tx = false;
ack = true;
}
clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status);
/* if all done, turn mpc on again */
if (config_af_params.mpc_onoff == 1)
brcmf_set_mpc(ndev, 1);
@ -1293,6 +1825,72 @@ exit:
return ack;
}
/**
* brcmf_p2p_notify_rx_mgmt_p2p_probereq() - Event handler for p2p probe req.
*
* @ifp: interface pointer for which event was received.
* @e: even message.
* @data: payload of event message (probe request).
*/
s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
const struct brcmf_event_msg *e,
void *data)
{
struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
struct brcmf_p2p_info *p2p = &cfg->p2p;
struct afx_hdl *afx_hdl = &p2p->afx_hdl;
struct wireless_dev *wdev;
struct brcmf_cfg80211_vif *vif = ifp->vif;
struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data;
u16 chanspec = be16_to_cpu(rxframe->chanspec);
u8 *mgmt_frame;
u32 mgmt_frame_len;
s32 freq;
u16 mgmt_type;
brcmf_dbg(INFO, "Enter: event %d reason %d\n", e->event_code,
e->reason);
if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status) &&
(memcmp(afx_hdl->tx_dst_addr, e->addr, ETH_ALEN) == 0)) {
afx_hdl->peer_chan = CHSPEC_CHANNEL(chanspec);
brcmf_dbg(INFO, "PROBE REQUEST: Peer found, channel=%d\n",
afx_hdl->peer_chan);
complete(&afx_hdl->act_frm_scan);
}
/* Firmware sends us two proberesponses for each idx one. At the */
/* moment anything but bsscfgidx 0 is passed up to supplicant */
if (e->bsscfgidx == 0)
return 0;
/* Filter any P2P probe reqs arriving during the GO-NEG Phase */
if (test_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status)) {
brcmf_dbg(INFO, "Filtering P2P probe_req in GO-NEG phase\n");
return 0;
}
/* Check if wpa_supplicant has registered for this frame */
brcmf_dbg(INFO, "vif->mgmt_rx_reg %04x\n", vif->mgmt_rx_reg);
mgmt_type = (IEEE80211_STYPE_PROBE_REQ & IEEE80211_FCTL_STYPE) >> 4;
if ((vif->mgmt_rx_reg & BIT(mgmt_type)) == 0)
return 0;
mgmt_frame = (u8 *)(rxframe + 1);
mgmt_frame_len = e->datalen - sizeof(*rxframe);
freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec),
CHSPEC_IS2G(chanspec) ?
IEEE80211_BAND_2GHZ :
IEEE80211_BAND_5GHZ);
wdev = ifp->ndev->ieee80211_ptr;
cfg80211_rx_mgmt(wdev, freq, 0, mgmt_frame, mgmt_frame_len, GFP_ATOMIC);
brcmf_dbg(INFO, "mgmt_frame_len (%d) , e->datalen (%d), chanspec (%04x), freq (%d)\n",
mgmt_frame_len, e->datalen, chanspec, freq);
return 0;
}
/**
* brcmf_p2p_attach() - attach for P2P.
@ -1362,6 +1960,9 @@ s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg)
}
init_completion(&p2p->send_af_done);
INIT_WORK(&p2p->afx_hdl.afx_work, brcmf_p2p_afx_handler);
init_completion(&p2p->afx_hdl.act_frm_scan);
init_completion(&p2p->wait_next_af);
}
exit:
return err;
@ -1622,6 +2223,7 @@ fail:
int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
{
struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
struct brcmf_p2p_info *p2p = &cfg->p2p;
struct brcmf_cfg80211_vif *vif;
unsigned long jiffie_timeout = msecs_to_jiffies(1500);
bool wait_for_disable = false;
@ -1647,6 +2249,9 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
break;
}
clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n");
if (wait_for_disable)
wait_for_completion_timeout(&cfg->vif_disabled,
msecs_to_jiffies(500));
@ -1666,7 +2271,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
}
brcmf_cfg80211_arm_vif_event(cfg, NULL);
brcmf_free_vif(vif);
cfg->p2p.bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL;
p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL;
return err;
}

51
drivers/net/wireless/brcm80211/brcmfmac/p2p.h
View File

@ -58,6 +58,10 @@ struct p2p_bss {
* @BRCMF_P2P_STATUS_ACTION_TX_NOACK: action frame tx not acked.
* @BRCMF_P2P_STATUS_GO_NEG_PHASE: P2P GO negotiation ongoing.
* @BRCMF_P2P_STATUS_DISCOVER_LISTEN: P2P listen, remaining on channel.
* @BRCMF_P2P_STATUS_SENDING_ACT_FRAME: In the process of sending action frame.
* @BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN: extra listen time for af tx.
* @BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME: waiting for action frame response.
* @BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL: search channel for AF active.
*/
enum brcmf_p2p_status {
BRCMF_P2P_STATUS_ENABLED,
@ -69,7 +73,34 @@ enum brcmf_p2p_status {
BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
BRCMF_P2P_STATUS_ACTION_TX_NOACK,
BRCMF_P2P_STATUS_GO_NEG_PHASE,
BRCMF_P2P_STATUS_DISCOVER_LISTEN
BRCMF_P2P_STATUS_DISCOVER_LISTEN,
BRCMF_P2P_STATUS_SENDING_ACT_FRAME,
BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL
};
/**
* struct afx_hdl - action frame off channel storage.
*
* @afx_work: worker thread for searching channel
* @act_frm_scan: thread synchronizing struct.
* @is_active: channel searching active.
* @peer_chan: current channel.
* @is_listen: sets mode for afx worker.
* @my_listen_chan: this peers listen channel.
* @peer_listen_chan: remote peers listen channel.
* @tx_dst_addr: mac address where tx af should be sent to.
*/
struct afx_hdl {
struct work_struct afx_work;
struct completion act_frm_scan;
bool is_active;
s32 peer_chan;
bool is_listen;
u16 my_listen_chan;
u16 peer_listen_chan;
u8 tx_dst_addr[ETH_ALEN];
};
/**
@ -87,6 +118,12 @@ enum brcmf_p2p_status {
* @remain_on_channel_cookie: cookie counter for remain on channel cmd
* @next_af_subtype: expected action frame subtype.
* @send_af_done: indication that action frame tx is complete.
* @afx_hdl: action frame search handler info.
* @af_sent_channel: channel action frame is sent.
* @af_tx_sent_jiffies: jiffies time when af tx was transmitted.
* @wait_next_af: thread synchronizing struct.
* @gon_req_action: about to send go negotiation requets frame.
* @block_gon_req_tx: drop tx go negotiation requets frame.
*/
struct brcmf_p2p_info {
struct brcmf_cfg80211_info *cfg;
@ -101,6 +138,12 @@ struct brcmf_p2p_info {
u32 remain_on_channel_cookie;
u8 next_af_subtype;
struct completion send_af_done;
struct afx_hdl afx_hdl;
u32 af_sent_channel;
unsigned long af_tx_sent_jiffies;
struct completion wait_next_af;
bool gon_req_action;
bool block_gon_req_tx;
};
s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg);
@ -132,5 +175,9 @@ int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp,
bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
struct net_device *ndev,
struct brcmf_fil_af_params_le *af_params);
bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg,
struct brcmf_bss_info_le *bi);
s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
const struct brcmf_event_msg *e,
void *data);
#endif /* WL_CFGP2P_H_ */

76
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
View File

@ -601,10 +601,8 @@ brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
cfg80211_scan_done(scan_request, aborted);
brcmf_set_mpc(ndev, 1);
}
if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
brcmf_err("Scan complete while device not scanning\n");
return -EPERM;
}
if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
return err;
}
@ -2525,8 +2523,7 @@ static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
container_of(work, struct brcmf_cfg80211_info,
escan_timeout_work);
brcmf_notify_escan_complete(cfg,
cfg->escan_info.ndev, true, true);
brcmf_notify_escan_complete(cfg, cfg->escan_info.ndev, true, true);
}
static void brcmf_escan_timeout(unsigned long data)
@ -2603,11 +2600,6 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
brcmf_err("Invalid escan result (NULL pointer)\n");
goto exit;
}
if (!cfg->scan_request) {
brcmf_dbg(SCAN, "result without cfg80211 request\n");
goto exit;
}
if (le16_to_cpu(escan_result_le->bss_count) != 1) {
brcmf_err("Invalid bss_count %d: ignoring\n",
escan_result_le->bss_count);
@ -2615,6 +2607,14 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
}
bss_info_le = &escan_result_le->bss_info_le;
if (brcmf_p2p_scan_finding_common_channel(cfg, bss_info_le))
goto exit;
if (!cfg->scan_request) {
brcmf_dbg(SCAN, "result without cfg80211 request\n");
goto exit;
}
bi_length = le32_to_cpu(bss_info_le->length);
if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
WL_ESCAN_RESULTS_FIXED_SIZE)) {
@ -2653,6 +2653,8 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
list->count++;
} else {
cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
if (brcmf_p2p_scan_finding_common_channel(cfg, NULL))
goto exit;
if (cfg->scan_request) {
cfg->bss_list = (struct brcmf_scan_results *)
cfg->escan_info.escan_buf;
@ -2661,7 +2663,8 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
brcmf_notify_escan_complete(cfg, ndev, aborted,
false);
} else
brcmf_err("Unexpected scan result 0x%x\n", status);
brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
status);
}
exit:
return err;
@ -4038,50 +4041,6 @@ exit:
return err;
}
static s32 brcmf_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
const struct brcmf_event_msg *e,
void *data)
{
struct wireless_dev *wdev;
struct brcmf_cfg80211_vif *vif = ifp->vif;
struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data;
u16 chanspec = be16_to_cpu(rxframe->chanspec);
u8 *mgmt_frame;
u32 mgmt_frame_len;
s32 freq;
u16 mgmt_type;
brcmf_dbg(INFO,
"Enter: event %d reason %d\n", e->event_code, e->reason);
/* Firmware sends us two proberesponses for each idx one. At the */
/* moment anything but bsscfgidx 0 is passed up to supplicant */
if (e->bsscfgidx == 0)
return 0;
/* Check if wpa_supplicant has registered for this frame */
brcmf_dbg(INFO, "vif->mgmt_rx_reg %04x\n", vif->mgmt_rx_reg);
mgmt_type = (IEEE80211_STYPE_PROBE_REQ & IEEE80211_FCTL_STYPE) >> 4;
if ((vif->mgmt_rx_reg & BIT(mgmt_type)) == 0)
return 0;
mgmt_frame = (u8 *)(rxframe + 1);
mgmt_frame_len = e->datalen - sizeof(*rxframe);
freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec),
CHSPEC_IS2G(chanspec) ?
IEEE80211_BAND_2GHZ :
IEEE80211_BAND_5GHZ);
wdev = ifp->ndev->ieee80211_ptr;
cfg80211_rx_mgmt(wdev, freq, 0, mgmt_frame, mgmt_frame_len, GFP_ATOMIC);
brcmf_dbg(INFO,
"mgmt_frame_len (%d) , e->datalen (%d), chanspec (%04x), freq (%d)\n",
mgmt_frame_len, e->datalen, chanspec, freq);
return 0;
}
static struct cfg80211_ops wl_cfg80211_ops = {
.add_virtual_intf = brcmf_cfg80211_add_iface,
.del_virtual_intf = brcmf_cfg80211_del_iface,
@ -4240,6 +4199,7 @@ static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
wiphy->cipher_suites = __wl_cipher_suites;
wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
WIPHY_FLAG_OFFCHAN_TX |
WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
wiphy->mgmt_stypes = brcmf_txrx_stypes;
wiphy->max_remain_on_channel_duration = 5000;
@ -4721,13 +4681,15 @@ static void brcmf_register_event_handlers(struct brcmf_cfg80211_info *cfg)
brcmf_fweh_register(cfg->pub, BRCMF_E_IF,
brcmf_notify_vif_event);
brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_PROBEREQ_MSG,
brcmf_notify_rx_mgmt_p2p_probereq);
brcmf_p2p_notify_rx_mgmt_p2p_probereq);
brcmf_fweh_register(cfg->pub, BRCMF_E_P2P_DISC_LISTEN_COMPLETE,
brcmf_p2p_notify_listen_complete);
brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_RX,
brcmf_p2p_notify_action_frame_rx);
brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_COMPLETE,
brcmf_p2p_notify_action_tx_complete);
brcmf_fweh_register(cfg->pub, BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE,
brcmf_p2p_notify_action_tx_complete);
}
static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)