light sleep: add wifi mac sleep support for esp32s3

components/esp_phy/Kconfig

@@ -81,7 +81,7 @@ menu "PHY"
 
     config ESP32_PHY_MAC_BB_PD
         bool "Power down MAC and baseband of Wi-Fi and Bluetooth when PHY is disabled"
-        depends on (IDF_TARGET_ESP32C3 && FREERTOS_USE_TICKLESS_IDLE)
+        depends on ((IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3) && FREERTOS_USE_TICKLESS_IDLE)
         default n
         help
             If enabled, the MAC and baseband of Wi-Fi and Bluetooth will be powered

components/esp_rom/include/esp32s3/rom/apb_backup_dma.h

@@ -0,0 +1,17 @@
+/*
+ * SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void ets_apb_backup_init_lock_func(void(* _apb_backup_lock)(void), void(* _apb_backup_unlock)(void));
+
+#ifdef __cplusplus
+}
+#endif

components/esp_system/port/soc/esp32s3/CMakeLists.txt

@@ -3,6 +3,7 @@ set(srcs "highint_hdl.S"
          "reset_reason.c"
          "system_internal.c"
          "cache_err_int.c"
+         "apb_backup_dma.c"
          "../../arch/xtensa/panic_arch.c"
          "../../arch/xtensa/panic_handler_asm.S"
          "../../arch/xtensa/expression_with_stack.c"

components/esp_system/port/soc/esp32s3/apb_backup_dma.c

@@ -0,0 +1,36 @@
+/*
+ * SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "soc/soc_caps.h"
+#include "esp_attr.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/portmacro.h"
+#include "esp32s3/rom/apb_backup_dma.h"
+
+static portMUX_TYPE s_apb_backup_dma_mutex = portMUX_INITIALIZER_UNLOCKED;
+
+static void IRAM_ATTR apb_backup_dma_lock(void)
+{
+    if (xPortInIsrContext()) {
+        portENTER_CRITICAL_ISR(&s_apb_backup_dma_mutex);
+    } else {
+        portENTER_CRITICAL(&s_apb_backup_dma_mutex);
+    }
+}
+
+static void IRAM_ATTR apb_backup_dma_unlock(void)
+{
+    if (xPortInIsrContext()) {
+        portEXIT_CRITICAL_ISR(&s_apb_backup_dma_mutex);
+    } else {
+        portEXIT_CRITICAL(&s_apb_backup_dma_mutex);
+    }
+}
+
+void esp_apb_backup_dma_lock_init(void)
+{
+    ets_apb_backup_init_lock_func(apb_backup_dma_lock, apb_backup_dma_unlock);
+}

components/soc/esp32s3/include/soc/soc_caps.h

@@ -39,6 +39,8 @@
 #define SOC_ADC_SUPPORT_RTC_CTRL        (1)
 #define SOC_ADC_ARBITER_SUPPORTED       (1)
 
+/*-------------------------- APB BACKUP DMA CAPS -------------------------------*/
+#define SOC_APB_BACKUP_DMA              (1)
 
 /*-------------------------- BROWNOUT CAPS -----------------------------------*/
 #include "brownout_caps.h"

components/soc/esp32s3/include/soc/syscon_reg.h

@@ -169,9 +169,9 @@ extern "C" {
 #define SYSTEM_WIFI_CLK_EN_REG SYSCON_WIFI_CLK_EN_REG
 /* SYSTEM_WIFI_CLK_EN : R/W ;bitpos:[31:0] ;default: 32'hfffce030 ; */
 /*description: */
-#define SYSTEM_WIFI_CLK_EN 0xFFFFFFFF
+#define SYSTEM_WIFI_CLK_EN 0x00FB9FCF
 #define SYSTEM_WIFI_CLK_EN_M ((SYSTEM_WIFI_CLK_EN_V) << (SYSTEM_WIFI_CLK_EN_S))
-#define SYSTEM_WIFI_CLK_EN_V 0xFFFFFFFF
+#define SYSTEM_WIFI_CLK_EN_V 0x00FB9FCF
 #define SYSTEM_WIFI_CLK_EN_S 0
 
 /* Mask for all Wifi clock bits, 6 */