ath6kl: support TX error rate notification

The ath6kl firmware can monitor a connection and report when a certain
TX failure threshold is crossed. Support this configuration and event
reporting on compatible firmwares.

Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

4 files changed, 108 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index a624a0c5e5f..0194617ff30 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -3326,6 +3326,27 @@ static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy,
                                            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] = {
@@ -3392,6 +3413,7 @@ static struct cfg80211_ops ath6kl_cfg80211_ops = {
         .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)
diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h
index f16f6ba481d..a754a153cc8 100644
--- a/drivers/net/wireless/ath/ath6kl/core.h
+++ b/drivers/net/wireless/ath/ath6kl/core.h
@@ -121,6 +121,9 @@ enum ath6kl_fw_capability {
         /* FW sets mac_addr[4] ^= 0x80 for newly created interfaces */
         ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR,
 
+        /* Firmware supports TX error rate notification */
+        ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY,
+
         /* this needs to be last */
         ATH6KL_FW_CAPABILITY_MAX,
 };
@@ -593,6 +596,7 @@ struct ath6kl_vif {
         u16 assoc_bss_beacon_int;
         u16 listen_intvl_t;
         u16 bmiss_time_t;
+        u32 txe_intvl;
         u16 bg_scan_period;
         u8 assoc_bss_dtim_period;
         struct net_device_stats net_stats;
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index 9673f277817..4762fa57063 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -1531,6 +1531,50 @@ static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
         return 0;
 }
 
+static int ath6kl_wmi_txe_notify_event_rx(struct wmi *wmi, u8 *datap, int len,
+                                          struct ath6kl_vif *vif)
+{
+        struct wmi_txe_notify_event *ev;
+        u32 rate, pkts;
+
+        if (len < sizeof(*ev))
+                return -EINVAL;
+
+        if (vif->sme_state != SME_CONNECTED)
+                return -ENOTCONN;
+
+        ev = (struct wmi_txe_notify_event *) datap;
+        rate = le32_to_cpu(ev->rate);
+        pkts = le32_to_cpu(ev->pkts);
+
+        ath6kl_dbg(ATH6KL_DBG_WMI, "TXE notify event: peer %pM rate %d% pkts %d intvl %ds\n",
+                   vif->bssid, rate, pkts, vif->txe_intvl);
+
+        cfg80211_cqm_txe_notify(vif->ndev, vif->bssid, pkts,
+                                rate, vif->txe_intvl, GFP_KERNEL);
+
+        return 0;
+}
+
+int ath6kl_wmi_set_txe_notify(struct wmi *wmi, u8 idx,
+                              u32 rate, u32 pkts, u32 intvl)
+{
+        struct sk_buff *skb;
+        struct wmi_txe_notify_cmd *cmd;
+
+        skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
+        if (!skb)
+                return -ENOMEM;
+
+        cmd = (struct wmi_txe_notify_cmd *) skb->data;
+        cmd->rate = cpu_to_le32(rate);
+        cmd->pkts = cpu_to_le32(pkts);
+        cmd->intvl = cpu_to_le32(intvl);
+
+        return ath6kl_wmi_cmd_send(wmi, idx, skb, WMI_SET_TXE_NOTIFY_CMDID,
+                                   NO_SYNC_WMIFLAG);
+}
+
 int ath6kl_wmi_set_rssi_filter_cmd(struct wmi *wmi, u8 if_idx, s8 rssi)
 {
         struct sk_buff *skb;
@@ -3768,6 +3812,9 @@ static int ath6kl_wmi_proc_events_vif(struct wmi *wmi, u16 if_idx, u16 cmd_id,
         case WMI_RX_ACTION_EVENTID:
                 ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_ACTION_EVENTID\n");
                 return ath6kl_wmi_rx_action_event_rx(wmi, datap, len, vif);
+        case WMI_TXE_NOTIFY_EVENTID:
+                ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TXE_NOTIFY_EVENTID\n");
+                return ath6kl_wmi_txe_notify_event_rx(wmi, datap, len, vif);
         default:
                 ath6kl_dbg(ATH6KL_DBG_WMI, "unknown cmd id 0x%x\n", cmd_id);
                 return -EINVAL;
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.h b/drivers/net/wireless/ath/ath6kl/wmi.h
index b5deaffb79e..8e8846f1b1a 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.h
+++ b/drivers/net/wireless/ath/ath6kl/wmi.h
@@ -632,6 +632,12 @@ enum wmi_cmd_id {
         WMI_SET_REGDOMAIN_CMDID,
 
         WMI_SET_RSSI_FILTER_CMDID,
+
+        WMI_SET_KEEP_ALIVE_EXT,
+
+        WMI_VOICE_DETECTION_ENABLE_CMDID,
+
+        WMI_SET_TXE_NOTIFY_CMDID,
 };
 
 enum wmi_mgmt_frame_type {
@@ -1464,6 +1470,20 @@ enum wmi_event_id {
         WMI_P2P_CAPABILITIES_EVENTID,
         WMI_RX_ACTION_EVENTID,
         WMI_P2P_INFO_EVENTID,
+
+        /* WPS Events */
+        WMI_WPS_GET_STATUS_EVENTID,
+        WMI_WPS_PROFILE_EVENTID,
+
+        /* more P2P events */
+        WMI_NOA_INFO_EVENTID,
+        WMI_OPPPS_INFO_EVENTID,
+        WMI_PORT_STATUS_EVENTID,
+
+        /* 802.11w */
+        WMI_GET_RSN_CAP_EVENTID,
+
+        WMI_TXE_NOTIFY_EVENTID,
 };
 
 struct wmi_ready_event_2 {
@@ -2096,6 +2116,19 @@ struct wmi_del_wow_pattern_cmd {
         __le16 filter_id;
 } __packed;
 
+/* WMI_SET_TXE_NOTIFY_CMDID */
+struct wmi_txe_notify_cmd {
+        __le32 rate;
+        __le32 pkts;
+        __le32 intvl;
+} __packed;
+
+/* WMI_TXE_NOTIFY_EVENTID */
+struct wmi_txe_notify_event {
+        __le32 rate;
+        __le32 pkts;
+} __packed;
+
 /* WMI_SET_AKMP_PARAMS_CMD */
 
 struct wmi_pmkid {
@@ -2610,6 +2643,8 @@ int ath6kl_wmi_mcast_filter_cmd(struct wmi *wmi, u8 if_idx, bool mc_all_on);
 int ath6kl_wmi_add_del_mcast_filter_cmd(struct wmi *wmi, u8 if_idx,
                                         u8 *filter, bool add_filter);
 int ath6kl_wmi_sta_bmiss_enhance_cmd(struct wmi *wmi, u8 if_idx, bool enable);
+int ath6kl_wmi_set_txe_notify(struct wmi *wmi, u8 idx,
+                              u32 rate, u32 pkts, u32 intvl);
 
 /* AP mode uAPSD */
 int ath6kl_wmi_ap_set_apsd(struct wmi *wmi, u8 if_idx, u8 enable);