WiFi: Add support for ESP32S2

1) Update WiFi and PHY libs for ESP32S2.
2) Remove KConfig options ESP32S2 PHY lib selection.
3) Change target macros from ESP32S2BETA to ESP32S2

components/esp32s2/Kconfig

@@ -4,27 +4,6 @@ menu "ESP32S2-specific"
     # not working so we just hide all items here
     visible if IDF_TARGET_ESP32S2
 
-    choice ESP32S2_CHIP_VERSION
-        # TODO: remove once final S2 chip is supported
-        prompt "ESP32-S2 chip version"
-        default ESP32S2_VERSION_A
-        help
-            There are three versions of ESP32-S2 chip with different Wi-Fi PHY: A, B and Marlin3.
-
-            This setting must match the chip for Wi-Fi to work correctly. You can determine
-            the chip version by reading the markings on top of the chip. It will be one of the
-            three options given here.
-
-            The Wi-Fi performance of Marlin3 is the best among the three versions of chip.
-
-        config ESP32S2_VERSION_A
-            bool "Chip7.2.2-A"
-        config ESP32S2_VERSION_B
-            bool "Chip7.2.2-B"
-        config ESP32S2_VERSION_MARLIN3
-            bool "Marlin3-B2 or Marlin3-B3"
-    endchoice
-
     choice ESP32S2_DEFAULT_CPU_FREQ_MHZ
         prompt "CPU frequency"
         default ESP32S2_DEFAULT_CPU_FREQ_160 if !IDF_ENV_FPGA

components/esp_wifi/CMakeLists.txt

@@ -40,18 +40,7 @@ endif()
 target_link_libraries(${COMPONENT_LIB} PUBLIC "-L ${CMAKE_CURRENT_SOURCE_DIR}/lib/${target_name}")
 
 if(link_binary_libs)
-    if(CONFIG_IDF_TARGET_ESP32)
     set(phy phy)
-    elseif(CONFIG_IDF_TARGET_ESP32S2)
-        # TODO: remove once final S2 chip is supported
-        if(CONFIG_ESP32S2_VERSION_A)
-            set(phy phyA)
-        elseif(CONFIG_ESP32S2_VERSION_B)
-            set(phy phyB)
-        elseif(CONFIG_ESP32S2_VERSION_MARLIN3)
-            set(phy phy_marlin3)
-        endif()
-    endif()
     set(blobs coexist core espnow mesh net80211 pp rtc smartconfig ${phy})
 
     foreach(blob ${blobs})

components/esp_wifi/esp32s2/esp_adapter.c

@@ -582,7 +582,7 @@ wifi_osi_funcs_t g_wifi_osi_funcs = {
     ._get_random = os_get_random,
     ._get_time = get_time_wrapper,
     ._random = os_random,
-#if CONFIG_IDF_TARGET_ESP32S2BETA
+#if CONFIG_IDF_TARGET_ESP32S2
     ._slowclk_cal_get = esp_clk_slowclk_cal_get,
 #endif
     ._log_write = esp_log_write,

components/esp_wifi/include/esp_private/wifi_os_adapter.h

@@ -107,7 +107,7 @@ typedef struct {
     int32_t (* _get_random)(uint8_t *buf, size_t len);
     int32_t (* _get_time)(void *t);
     unsigned long (* _random)(void);
-#if CONFIG_IDF_TARGET_ESP32S2BETA
+#if CONFIG_IDF_TARGET_ESP32S2
     uint32_t (* _slowclk_cal_get)(void);
 #endif
     void (* _log_write)(uint32_t level, const char* tag, const char* format, ...);

components/esp_wifi/include/esp_wifi_types.h

@@ -325,7 +325,7 @@ typedef struct {
     unsigned sgi:1;               /**< Short Guide Interval(SGI). 0: Long GI; 1: Short GI */
 #if CONFIG_IDF_TARGET_ESP32
     signed noise_floor:8;         /**< noise floor of Radio Frequency Module(RF). unit: 0.25dBm*/
-#elif CONFIG_IDF_TARGET_ESP32S2BETA
+#elif CONFIG_IDF_TARGET_ESP32S2
     unsigned :8;
 #endif
     unsigned ampdu_cnt:8;         /**< ampdu cnt */
@@ -333,10 +333,15 @@ typedef struct {
     unsigned secondary_channel:4; /**< secondary channel on which this packet is received. 0: none; 1: above; 2: below */
     unsigned :8;                  /**< reserve */
     unsigned timestamp:32;        /**< timestamp. The local time when this packet is received. It is precise only if modem sleep or light sleep is not enabled. unit: microsecond */
+#if CONFIG_IDF_TARGET_ESP32
     unsigned :32;                 /**< reserve */
     unsigned :31;                 /**< reserve */
     unsigned ant:1;               /**< antenna number from which this packet is received. 0: WiFi antenna 0; 1: WiFi antenna 1 */
-#if CONFIG_IDF_TARGET_ESP32S2BETA
+#elif CONFIG_IDF_TARGET_ESP32S2
+    unsigned :32;
+    unsigned :32;
+#endif
+#if CONFIG_IDF_TARGET_ESP32S2
     signed noise_floor:8;         /**< noise floor of Radio Frequency Module(RF). unit: 0.25dBm*/
     unsigned :24;
 #endif

components/esp_wifi/src/phy_init.c

@@ -765,3 +765,8 @@ void esp_phy_load_cal_and_init(phy_rf_module_t module)
     free(cal_data); // PHY maintains a copy of calibration data, so we can free this
 }
 
+#if CONFIG_IDF_TARGET_ESP32S2
+/* Just a stub to avoid SSC build failure. Need to update phylib */
+void set_cca(bool en ,uint8_t cca_thr) {}
+#endif
+