Merge branch 'feature/support_ble_direct_ind_low_adv_v4.1' into 'release/v4.1'

components/bt: Support low duty cycle directed advertising(backport release/v4.1)

See merge request espressif/esp-idf!16380

components/bt/host/bluedroid/stack/btm/btm_ble_gap.c

@@ -95,7 +95,7 @@ const UINT8 btm_le_state_combo_tbl[BTM_BLE_STATE_MAX][BTM_BLE_STATE_MAX][2] = {
         {HCI_SUPP_LE_STATES_INIT_MASK, HCI_SUPP_LE_STATES_INIT_OFF}, /* init */
         {HCI_SUPP_LE_STATES_INIT_MASK, HCI_SUPP_LE_STATES_INIT_OFF}, /* master */
         {HCI_SUPP_LE_STATES_SLAVE_MASK, HCI_SUPP_LE_STATES_SLAVE_OFF}, /* slave */
-        {0, 0},                   /* todo: lo du dir adv, not covered ? */
+        {HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_OFF}, /* lo du dir adv */
         {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_OFF}, /* hi duty dir adv */
         {HCI_SUPP_LE_STATES_NON_CONN_ADV_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_OFF},  /* non connectable adv */
         {HCI_SUPP_LE_STATES_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_OFF},   /*  passive scan */
@@ -161,8 +161,8 @@ const UINT8 btm_le_state_combo_tbl[BTM_BLE_STATE_MAX][BTM_BLE_STATE_MAX][2] = {
         {0, 0},  /* lo duty cycle adv 40 */
         {0, 0},   /* hi duty cycle adv 39 */
         {0, 0},  /*  non connectable adv */
-        {0, 0},   /* TODO: passive scan, not covered? */
-        {0, 0},  /* TODO:  active scan, not covered? */
+        {HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_PASS_SCAN_OFF},   /* passive scan */
+        {HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_ACTIVE_SCAN_OFF},  /* active scan */
         {0, 0}   /*  scanable adv */
     },
     { /* hi duty cycle adv */

components/bt/host/bluedroid/stack/l2cap/l2c_link.c

@@ -358,7 +358,10 @@ BOOLEAN l2c_link_hci_disc_comp (UINT16 handle, UINT8 reason)
     /* If we don't have one, maybe an SCO link. Send to MM */
     if (!p_lcb) {
 #if (BLE_INCLUDED == TRUE)
-        BTM_Recovery_Pre_State();
+        /* The Directed Advertising Timeout error code indicates that directed advertising completed */
+        if (reason != HCI_ERR_DIRECTED_ADVERTISING_TIMEOUT) {
+            BTM_Recovery_Pre_State();
+        }
 #endif  ///BLE_INCLUDED == TRUE
         status = FALSE;
     } else {