The patch adds support for "outside the context of a BSS"(OCB) mode
to ath9k driver and extends debugfs files by OCB ralated information.

This patch was tested on AR9380-AL1A cards.

Signed-off-by: Jan Kaisrlik <[email protected]>
Cc: Michal Sojka <[email protected]>
---
 drivers/net/wireless/ath/ath9k/ani.c          |  1 +
 drivers/net/wireless/ath/ath9k/ath9k.h        |  1 +
 drivers/net/wireless/ath/ath9k/debug.c        |  4 ++--
 drivers/net/wireless/ath/ath9k/htc_drv_init.c |  3 ++-
 drivers/net/wireless/ath/ath9k/hw.c           |  1 +
 drivers/net/wireless/ath/ath9k/init.c         |  3 ++-
 drivers/net/wireless/ath/ath9k/main.c         | 11 +++++++++--
 drivers/net/wireless/ath/ath9k/recv.c         |  2 +-
 drivers/net/wireless/ath/debug.c              |  2 ++
 9 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ani.c 
b/drivers/net/wireless/ath/ath9k/ani.c
index 25e45e4..0ec2c0b 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -342,6 +342,7 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
 
        if (is_scanning ||
            (ah->opmode != NL80211_IFTYPE_STATION &&
+            ah->opmode != NL80211_IFTYPE_OCB &&
             ah->opmode != NL80211_IFTYPE_ADHOC)) {
                /*
                 * If we're scanning or in AP mode, the defaults (ini)
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h 
b/drivers/net/wireless/ath/ath9k/ath9k.h
index c85c479..b42f4a9 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -635,6 +635,7 @@ struct ath9k_vif_iter_data {
        int nstations; /* number of station vifs */
        int nwds;      /* number of WDS vifs */
        int nadhocs;   /* number of adhoc vifs */
+       int nocbs;     /* number of OCB vifs */
        struct ieee80211_vif *primary_sta;
 };
 
diff --git a/drivers/net/wireless/ath/ath9k/debug.c 
b/drivers/net/wireless/ath/ath9k/debug.c
index da32c8f..6de64cf 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -741,8 +741,8 @@ static int read_file_misc(struct seq_file *file, void *data)
                           i++, (int)(ctx->assigned), iter_data.naps,
                           iter_data.nstations,
                           iter_data.nmeshes, iter_data.nwds);
-               seq_printf(file, " ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
-                          iter_data.nadhocs, sc->cur_chan->nvifs,
+               seq_printf(file, " ADHOC: %i OCB: %i TOTAL: %hi BEACON-VIF: 
%hi\n",
+                          iter_data.nadhocs, iter_data.nocbs, 
sc->cur_chan->nvifs,
                           sc->nbcnvifs);
        }
 
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c 
b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index 1e84882..5e53040 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -736,7 +736,8 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
                BIT(NL80211_IFTYPE_AP) |
                BIT(NL80211_IFTYPE_P2P_GO) |
                BIT(NL80211_IFTYPE_P2P_CLIENT) |
-               BIT(NL80211_IFTYPE_MESH_POINT);
+               BIT(NL80211_IFTYPE_MESH_POINT) |
+               BIT(NL80211_IFTYPE_OCB);
 
        hw->wiphy->iface_combinations = &if_comb;
        hw->wiphy->n_iface_combinations = 1;
diff --git a/drivers/net/wireless/ath/ath9k/hw.c 
b/drivers/net/wireless/ath/ath9k/hw.c
index 1dd0339..2144362 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1234,6 +1234,7 @@ static void ath9k_hw_set_operating_mode(struct ath_hw 
*ah, int opmode)
 
        ENABLE_REG_RMW_BUFFER(ah);
        switch (opmode) {
+       case NL80211_IFTYPE_OCB:
        case NL80211_IFTYPE_ADHOC:
                if (!AR_SREV_9340_13(ah)) {
                        set |= AR_STA_ID1_ADHOC;
diff --git a/drivers/net/wireless/ath/ath9k/init.c 
b/drivers/net/wireless/ath/ath9k/init.c
index 57f95f2..5d532c7 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -855,7 +855,8 @@ static void ath9k_set_hw_capab(struct ath_softc *sc, struct 
ieee80211_hw *hw)
                        BIT(NL80211_IFTYPE_STATION) |
                        BIT(NL80211_IFTYPE_ADHOC) |
                        BIT(NL80211_IFTYPE_MESH_POINT) |
-                       BIT(NL80211_IFTYPE_WDS);
+                       BIT(NL80211_IFTYPE_WDS) |
+                       BIT(NL80211_IFTYPE_OCB);
 
                if (ath9k_is_chanctx_enabled())
                        hw->wiphy->interface_modes |=
diff --git a/drivers/net/wireless/ath/ath9k/main.c 
b/drivers/net/wireless/ath/ath9k/main.c
index c27143b..f121ec0 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -938,6 +938,9 @@ static void ath9k_vif_iter(struct ath9k_vif_iter_data 
*iter_data,
                if (avp->assoc && !iter_data->primary_sta)
                        iter_data->primary_sta = vif;
                break;
+       case NL80211_IFTYPE_OCB:
+               iter_data->nocbs++;
+               break;
        case NL80211_IFTYPE_ADHOC:
                iter_data->nadhocs++;
                if (vif->bss_conf.enable_beacon)
@@ -1111,6 +1114,8 @@ void ath9k_calculate_summary_state(struct ath_softc *sc,
 
                if (iter_data.nmeshes)
                        ah->opmode = NL80211_IFTYPE_MESH_POINT;
+               else if (iter_data.nocbs)
+                       ah->opmode = NL80211_IFTYPE_OCB;
                else if (iter_data.nwds)
                        ah->opmode = NL80211_IFTYPE_AP;
                else if (iter_data.nadhocs)
@@ -1122,7 +1127,8 @@ void ath9k_calculate_summary_state(struct ath_softc *sc,
        ath9k_hw_setopmode(ah);
 
        ctx->switch_after_beacon = false;
-       if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0)
+       if ((iter_data.nstations + iter_data.nadhocs +
+            iter_data.nmeshes + iter_data.nocbs) > 0)
                ah->imask |= ATH9K_INT_TSFOOR;
        else {
                ah->imask &= ~ATH9K_INT_TSFOOR;
@@ -1760,7 +1766,8 @@ static void ath9k_bss_info_changed(struct ieee80211_hw 
*hw,
                ath9k_calculate_summary_state(sc, avp->chanctx);
        }
 
-       if (changed & BSS_CHANGED_IBSS) {
+       if ((changed & BSS_CHANGED_IBSS) ||
+             (changed & BSS_CHANGED_OCB)) {
                memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
                common->curaid = bss_conf->aid;
                ath9k_hw_write_associd(sc->sc_ah);
diff --git a/drivers/net/wireless/ath/ath9k/recv.c 
b/drivers/net/wireless/ath/ath9k/recv.c
index d3189da..994daf6 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -403,7 +403,7 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
            (sc->cur_chan->nvifs <= 1) &&
            !(sc->cur_chan->rxfilter & FIF_BCN_PRBRESP_PROMISC))
                rfilt |= ATH9K_RX_FILTER_MYBEACON;
-       else
+       else if (sc->sc_ah->opmode != NL80211_IFTYPE_OCB)
                rfilt |= ATH9K_RX_FILTER_BEACON;
 
        if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) ||
diff --git a/drivers/net/wireless/ath/debug.c b/drivers/net/wireless/ath/debug.c
index d59d83e..ae3a80c 100644
--- a/drivers/net/wireless/ath/debug.c
+++ b/drivers/net/wireless/ath/debug.c
@@ -22,6 +22,8 @@ const char *ath_opmode_to_string(enum nl80211_iftype opmode)
        switch (opmode) {
        case NL80211_IFTYPE_UNSPECIFIED:
                return "UNSPEC";
+       case NL80211_IFTYPE_OCB:
+               return "OCB";
        case NL80211_IFTYPE_ADHOC:
                return "ADHOC";
        case NL80211_IFTYPE_STATION:
-- 
2.1.4

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