wl12xx: BA initiator support

Add 80211n BA initiator session support wl1271 driver.
Include BA supported FW version auto detection mechanism.
BA initiator session management included in FW independently.

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/init.c b/drivers/net/wireless/wl12xx/init.c
index bdb61232f80c..2348eadc0de1 100644
--- a/drivers/net/wireless/wl12xx/init.c
+++ b/drivers/net/wireless/wl12xx/init.c
@@ -455,6 +455,43 @@ static int wl1271_ap_hw_init_post_mem(struct wl1271 *wl)
         return 0;
 }
 
+static void wl1271_check_ba_support(struct wl1271 *wl)
+{
+        /* validate FW cose ver x.x.x.50-60.x */
+        if ((wl->chip.fw_ver[3] >= WL12XX_BA_SUPPORT_FW_COST_VER2_START) &&
+            (wl->chip.fw_ver[3] < WL12XX_BA_SUPPORT_FW_COST_VER2_END)) {
+                wl->ba_support = true;
+                return;
+        }
+
+        wl->ba_support = false;
+}
+
+static int wl1271_set_ba_policies(struct wl1271 *wl)
+{
+        u8 tid_index;
+        u8 ret = 0;
+
+        /* Reset the BA RX indicators */
+        wl->ba_allowed = true;
+        wl->ba_rx_bitmap = 0;
+
+        /* validate that FW support BA */
+        wl1271_check_ba_support(wl);
+
+        if (wl->ba_support)
+                /* 802.11n initiator BA session setting */
+                for (tid_index = 0; tid_index < CONF_TX_MAX_TID_COUNT;
+                     ++tid_index) {
+                        ret = wl1271_acx_set_ba_session(wl, WLAN_BACK_INITIATOR,
+                                                        tid_index, true);
+                        if (ret < 0)
+                                break;
+                }
+
+        return ret;
+}
+
 int wl1271_hw_init(struct wl1271 *wl)
 {
         struct conf_tx_ac_category *conf_ac;
@@ -568,6 +605,11 @@ int wl1271_hw_init(struct wl1271 *wl)
         if (ret < 0)
                 goto out_free_memmap;
 
+        /* Configure initiator BA sessions policies */
+        ret = wl1271_set_ba_policies(wl);
+        if (ret < 0)
+                goto out_free_memmap;
+
         return 0;
 
  out_free_memmap: