[FL-2315] USB Mode switch lock (#1036)

* usb mode switch lock
* lock_mutex removed
* Wait for session termination in rpc_cli, lock badusb and u2f if rpc session is opened

Co-authored-by: あく <alleteam@gmail.com>

firmware/targets/f7/furi_hal/furi_hal_usb.c

@@ -16,6 +16,7 @@ typedef struct {
     osTimerId_t tmr;
     bool enabled;
     bool connected;
+    bool mode_lock;
     FuriHalUsbInterface* if_cur;
     FuriHalUsbInterface* if_next;
     void* if_ctx;
@@ -89,27 +90,47 @@ void furi_hal_usb_init(void) {
     FURI_LOG_I(TAG, "Init OK");
 }
 
-void furi_hal_usb_set_config(FuriHalUsbInterface* new_if, void* ctx) {
+bool furi_hal_usb_set_config(FuriHalUsbInterface* new_if, void* ctx) {
+    if(usb.mode_lock) {
+        return false;
+    }
+
     usb.if_next = new_if;
     usb.if_ctx = ctx;
     if(usb.thread == NULL) {
         // Service thread hasn't started yet, so just save interface mode
-        return;
+        return true;
     }
     furi_assert(usb.thread);
     osThreadFlagsSet(furi_thread_get_thread_id(usb.thread), EventModeChange);
+    return true;
 }
 
 FuriHalUsbInterface* furi_hal_usb_get_config() {
     return usb.if_cur;
 }
 
+void furi_hal_usb_lock() {
+    FURI_LOG_I(TAG, "Mode lock");
+    usb.mode_lock = true;
+}
+
+void furi_hal_usb_unlock() {
+    FURI_LOG_I(TAG, "Mode unlock");
+    usb.mode_lock = false;
+}
+
+bool furi_hal_usb_is_locked() {
+    return usb.mode_lock;
+}
+
 void furi_hal_usb_disable() {
     furi_assert(usb.thread);
     osThreadFlagsSet(furi_thread_get_thread_id(usb.thread), EventDisable);
 }
 
 void furi_hal_usb_enable() {
+    furi_assert(usb.thread);
     osThreadFlagsSet(furi_thread_get_thread_id(usb.thread), EventEnable);
 }
 

firmware/targets/furi_hal_include/furi_hal_usb.h

@@ -42,8 +42,9 @@ void furi_hal_usb_init();
  *
  * @param      mode new USB device mode
  * @param      ctx context passed to device mode init function
+ * @return     true - mode switch started, false - mode switch is locked
  */
-void furi_hal_usb_set_config(FuriHalUsbInterface* new_if, void* ctx);
+bool furi_hal_usb_set_config(FuriHalUsbInterface* new_if, void* ctx);
 
 /** Get USB device configuration
  *
@@ -51,6 +52,20 @@ void furi_hal_usb_set_config(FuriHalUsbInterface* new_if, void* ctx);
  */
 FuriHalUsbInterface* furi_hal_usb_get_config();
 
+/** Lock USB device mode switch
+ */
+void furi_hal_usb_lock();
+
+/** Unlock USB device mode switch
+ */
+void furi_hal_usb_unlock();
+
+/** Check if USB device mode switch locked
+ * 
+ * @return    lock state
+ */
+bool furi_hal_usb_is_locked();
+
 /** Disable USB device
  */
 void furi_hal_usb_disable();