Power Management: power up/down BT power domain when BT init/deinit

components/bt/controller/esp32/bt.c

@@ -449,6 +449,18 @@ static void btdm_slp_tmr_callback(void *arg);
 #endif /* #ifdef CONFIG_PM_ENABLE */
 
 
+static inline void esp_bt_power_domain_on(void)
+{
+    // Bluetooth module power up
+    esp_wifi_bt_power_domain_on();
+}
+
+static inline void esp_bt_power_domain_off(void)
+{
+    // Bluetooth module power down
+    esp_wifi_bt_power_domain_off();
+}
+
 static inline void btdm_check_and_init_bb(void)
 {
     /* init BT-BB if PHY/RF has been switched off since last BT-BB init */
@@ -1393,6 +1405,8 @@ esp_err_t esp_bt_controller_init(esp_bt_controller_config_t *cfg)
         goto error;
     }
 
+    esp_bt_power_domain_on();
+
     btdm_controller_mem_init();
 
     periph_module_enable(PERIPH_BT_MODULE);
@@ -1554,6 +1568,8 @@ esp_err_t esp_bt_controller_deinit(void)
     btdm_lpcycle_us = 0;
     btdm_controller_set_sleep_mode(BTDM_MODEM_SLEEP_MODE_NONE);
 
+    esp_bt_power_domain_off();
+
     return ESP_OK;
 }
 

components/bt/controller/esp32c3/bt.c

@@ -409,7 +409,7 @@ static DRAM_ATTR esp_pm_lock_handle_t s_light_sleep_pm_lock;
 void IRAM_ATTR btdm_hw_mac_power_down_wrapper(void)
 {
 #if CONFIG_MAC_BB_PD
-    // le module power down
+    // Bluetooth module power down
     SET_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_BT_FORCE_ISO);
     SET_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_BT_FORCE_PD);
 
@@ -420,7 +420,7 @@ void IRAM_ATTR btdm_hw_mac_power_down_wrapper(void)
 void IRAM_ATTR btdm_hw_mac_power_up_wrapper(void)
 {
 #if CONFIG_MAC_BB_PD
-    // le module power up
+    // Bluetooth module power up
     CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_BT_FORCE_PD);
     CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_BT_FORCE_ISO);
 
@@ -428,6 +428,22 @@ void IRAM_ATTR btdm_hw_mac_power_up_wrapper(void)
 #endif
 }
 
+static inline void esp_bt_power_domain_on(void)
+{
+    // Bluetooth module power up
+    CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_BT_FORCE_PD);
+    CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_BT_FORCE_ISO);
+    esp_wifi_bt_power_domain_on();
+}
+
+static inline void esp_bt_power_domain_off(void)
+{
+    // Bluetooth module power down
+    SET_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_BT_FORCE_ISO);
+    SET_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_BT_FORCE_PD);
+    esp_wifi_bt_power_domain_off();
+}
+
 void IRAM_ATTR btdm_backup_dma_copy_wrapper(uint32_t reg, uint32_t mem_addr, uint32_t num,  bool to_mem)
 {
 #if CONFIG_MAC_BB_PD
@@ -953,6 +969,8 @@ esp_err_t esp_bt_controller_init(esp_bt_controller_config_t *cfg)
     // overwrite some parameters
     cfg->magic = ESP_BT_CTRL_CONFIG_MAGIC_VAL;
 
+    esp_bt_power_domain_on();
+
     sdk_config_extend_set_pll_track(false);
 
 #if CONFIG_MAC_BB_PD
@@ -1231,6 +1249,9 @@ esp_err_t esp_bt_controller_deinit(void)
     esp_unregister_mac_bb_pd_callback(btdm_mac_bb_power_down_cb);
     esp_unregister_mac_bb_pu_callback(btdm_mac_bb_power_up_cb);
 #endif
+
+    esp_bt_power_domain_off();
+
     free(osi_funcs_p);
     osi_funcs_p = NULL;
 

components/bt/include/esp32/include/esp_bt.h

@@ -494,6 +494,16 @@ esp_err_t esp_bt_sleep_disable(void);
  */
 esp_err_t esp_ble_scan_dupilcate_list_flush(void);
 
+/**
+ * @brief bt Wi-Fi power domain power on
+ */
+void esp_wifi_bt_power_domain_on(void);
+
+/**
+ * @brief bt Wi-Fi power domain power off
+ */
+void esp_wifi_bt_power_domain_off(void);
+
 #ifdef __cplusplus
 }
 #endif

components/bt/include/esp32c3/include/esp_bt.h

@@ -523,6 +523,16 @@ void esp_bt_controller_wakeup_request(void);
  */
 int esp_bt_h4tl_eif_io_event_notify(int event);
 
+/**
+ * @brief bt Wi-Fi power domain power on
+ */
+void esp_wifi_bt_power_domain_on(void);
+
+/**
+ * @brief bt Wi-Fi power domain power off
+ */
+void esp_wifi_bt_power_domain_off(void);
+
 #ifdef __cplusplus
 }
 #endif