Add support for Remain-on-Channel and Action Tx

1. Add API's and structures for Remain-onChannel & Action Tx
2. Handling of events and callbacks for the operations
3. Update WiFi lib with related API support

components/esp_event/event_send.c

@@ -85,6 +85,12 @@ static system_event_id_t esp_event_legacy_wifi_event_id(int32_t event_id)
     case WIFI_EVENT_AP_PROBEREQRECVED:
         return SYSTEM_EVENT_AP_PROBEREQRECVED;
 
+    case WIFI_EVENT_ACTION_TX_STATUS:
+        return SYSTEM_EVENT_ACTION_TX_STATUS;
+
+    case WIFI_EVENT_ROC_DONE:
+        return SYSTEM_EVENT_ROC_DONE;
+
     default:
         ESP_LOGE(TAG, "invalid wifi event id %d", event_id);
         return SYSTEM_EVENT_MAX;

components/esp_event/include/esp_event_legacy.h

@@ -48,6 +48,8 @@ typedef enum {
     SYSTEM_EVENT_AP_STADISCONNECTED,       /*!< a station disconnected from ESP32 soft-AP */
     SYSTEM_EVENT_AP_STAIPASSIGNED,         /*!< ESP32 soft-AP assign an IP to a connected station */
     SYSTEM_EVENT_AP_PROBEREQRECVED,        /*!< Receive probe request packet in soft-AP interface */
+    SYSTEM_EVENT_ACTION_TX_STATUS,         /*!< Receive status of Action frame transmitted */
+    SYSTEM_EVENT_ROC_DONE,                 /*!< Indicates the completion of Remain-on-Channel operation status */
     SYSTEM_EVENT_GOT_IP6,                  /*!< ESP32 station or ap or ethernet interface v6IP addr is preferred */
     SYSTEM_EVENT_ETH_START,                /*!< ESP32 ethernet start */
     SYSTEM_EVENT_ETH_STOP,                 /*!< ESP32 ethernet stop */

components/esp_wifi/include/esp_wifi_types.h

@@ -483,6 +483,21 @@ typedef struct {
                     enabled_ant1: 4;      /**< Index (in antenna GPIO configuration) of enabled WIFI_ANT_MODE_ANT1 */
 } wifi_ant_config_t;
 
+/**
+ * @brief Management Frame Tx Request
+ *
+ *
+ */
+typedef struct {
+    wifi_interface_t ifx;    /**< WiFi interface to send request to */
+    uint8_t subtype;         /**< Frame Subtype of Management frame */
+    uint8_t dest_mac[6];     /**< Destination MAC address */
+    bool no_ack;             /**< Indicates no ack required for the frame */
+    uint32_t cookie;         /**< Context to identify the request */
+    uint32_t data_len;       /**< Length of the appended Data */
+    uint8_t data[0];         /**< Appended Data payload */
+} mgmt_tx_req_t;
+
 /**
   * @brief WiFi PHY rate encodings
   *
@@ -551,6 +566,8 @@ typedef enum {
 
     /* Add next events after this only */
     WIFI_EVENT_STA_BSS_RSSI_LOW,         /**< AP's RSSI crossed configured threshold */
+    WIFI_EVENT_ACTION_TX_STATUS,         /**< Status indication of Action Tx operation */
+    WIFI_EVENT_ROC_DONE,                 /**< Remain-on-Channel operation complete */
 
     WIFI_EVENT_MAX,                      /**< Invalid WiFi event ID */
 } wifi_event_t;
@@ -645,6 +662,19 @@ typedef struct {
 #define WIFI_STATIS_PS        (1<<4)
 #define WIFI_STATIS_ALL       (-1)
 
+/** Argument structure for WIFI_EVENT_MGMT_TX_STATUS event */
+typedef struct {
+    wifi_interface_t ifx;     /**< WiFi interface to send request to */
+    uint32_t cookie;          /**< Context to identify the request */
+    uint8_t da[6];            /**< Destination MAC address */
+    uint8_t status;           /**< Status of the operation */
+} wifi_event_mgmt_tx_status_t;
+
+/** Argument structure for WIFI_EVENT_ROC_DONE event */
+typedef struct {
+    uint32_t cookie;          /**< Context to identify the request */
+} wifi_event_roc_done_t;
+
 #ifdef __cplusplus
 }
 #endif

components/wpa_supplicant/src/esp_supplicant/esp_wifi_driver.h

@@ -136,6 +136,7 @@ struct wpa_funcs {
     uint8_t *(*wpa3_build_sae_msg)(uint8_t *bssid, uint32_t type, size_t *len);
     int (*wpa3_parse_sae_msg)(uint8_t *buf, size_t len, uint32_t type, uint16_t status);
     int (*wpa_sta_rx_mgmt)(u8 type, u8 *frame, size_t len, u8 *sender, u32 rssi, u8 channel, u64 current_tsf);
+    int (*offchan_rx_mgmt)(uint8_t *hdr, uint8_t *payload, size_t len, uint8_t channel);
 };
 
 struct wpa2_funcs {
@@ -261,5 +262,9 @@ bool esp_wifi_is_btm_enabled_internal(uint8_t if_index);
 esp_err_t esp_wifi_register_mgmt_frame_internal(uint32_t type, uint32_t subtype);
 esp_err_t esp_wifi_send_mgmt_frm_internal(const wifi_mgmt_frm_req_t *req);
 uint8_t esp_wifi_ap_get_prof_pairwise_cipher_internal(void);
+esp_err_t esp_wifi_mgmt_tx_req(uint8_t action, uint8_t channel,
+                               uint32_t wait_time_ms, const mgmt_tx_req_t *req);
+esp_err_t esp_wifi_remain_on_channel(uint8_t ifx, uint8_t action, uint8_t channel,
+                                     uint32_t wait_time_ms, void *ctx);
 
 #endif /* _ESP_WIFI_DRIVER_H_ */