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, 51 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/acx.c b/drivers/net/wireless/wl12xx/acx.c
index 679bb37f0ca4..0b9cacc74903 100644
--- a/drivers/net/wireless/wl12xx/acx.c
+++ b/drivers/net/wireless/wl12xx/acx.c
@@ -1342,6 +1342,57 @@ out:
         return ret;
 }
 
+/* Configure BA session initiator/receiver parameters setting in the FW. */
+int wl1271_acx_set_ba_session(struct wl1271 *wl,
+                               enum ieee80211_back_parties direction,
+                               u8 tid_index, u8 policy)
+{
+        struct wl1271_acx_ba_session_policy *acx;
+        int ret;
+
+        wl1271_debug(DEBUG_ACX, "acx ba session setting");
+
+        acx = kzalloc(sizeof(*acx), GFP_KERNEL);
+        if (!acx) {
+                ret = -ENOMEM;
+                goto out;
+        }
+
+        /* ANY role */
+        acx->role_id = 0xff;
+        acx->tid = tid_index;
+        acx->enable = policy;
+        acx->ba_direction = direction;
+
+        switch (direction) {
+        case WLAN_BACK_INITIATOR:
+                acx->win_size = wl->conf.ht.tx_ba_win_size;
+                acx->inactivity_timeout = wl->conf.ht.inactivity_timeout;
+                break;
+        case WLAN_BACK_RECIPIENT:
+                acx->win_size = RX_BA_WIN_SIZE;
+                acx->inactivity_timeout = 0;
+                break;
+        default:
+                wl1271_error("Incorrect acx command id=%x\n", direction);
+                ret = -EINVAL;
+                goto out;
+        }
+
+        ret = wl1271_cmd_configure(wl,
+                                   ACX_BA_SESSION_POLICY_CFG,
+                                   acx,
+                                   sizeof(*acx));
+        if (ret < 0) {
+                wl1271_warning("acx ba session setting failed: %d", ret);
+                goto out;
+        }
+
+out:
+        kfree(acx);
+        return ret;
+}
+
 int wl1271_acx_tsf_info(struct wl1271 *wl, u64 *mactime)
 {
         struct wl1271_acx_fw_tsf_information *tsf_info;