im an idiot interrupt deadlock

firmware/inc/app.h

@@ -8,6 +8,7 @@
 
 #include <SI_EFM8UB1_Register_Enums.h>
 #include <stdarg.h>
+#include "u2f_hid.h"
 
 // debug options
 #define U2F_PRINT
@@ -25,6 +26,7 @@
 typedef enum
 {
 	APP_NOTHING = 0,
+	APP_HID_MSG,
 	APP_WINK,
 	_APP_WINK,
 	APP_ERROR,
@@ -54,13 +56,16 @@ struct APP_DATA
 	uint8_t tmp[70];
 	uint8_t state;
 	uint8_t error;
+
+	struct u2f_hid_msg * hid_msg;
+
 };
 
 extern uint8_t hidmsgbuf[64];
 
 extern data struct APP_DATA appdata;
 
-
+void set_app_u2f_hid_msg(struct u2f_hid_msg * msg );
 void set_app_error(APP_ERROR_CODE ec);
 
 // should be called after initializing eeprom

firmware/src/callback.c

@@ -152,17 +152,10 @@ uint16_t USBD_XferCompleteCb(uint8_t epAddr, USB_Status_TypeDef status,
 
 	if (epAddr == EP1OUT)
 	{
-#ifdef U2F_PRINT
-		int i = 0;
-		for (i=0; i < sizeof(hidmsgbuf); i++)
-		{
-			uint8_t l = (uint8_t)hidmsgbuf[i];
-			u2f_putb(l);
-		}
-		u2f_prints("\r\n");
-#endif
+		dump_hex(hidmsgbuf, sizeof(hidmsgbuf));
+
 #ifndef U2F_HID_DISABLE
-		u2f_hid_request((struct u2f_hid_msg*)hidmsgbuf);
+		set_app_u2f_hid_msg((struct u2f_hid_msg *) hidmsgbuf );
 #endif
 	}
 

firmware/src/main.c

@@ -34,6 +34,12 @@ void set_app_error(APP_ERROR_CODE ec)
 	appdata.error = ec;
 }
 
+void set_app_u2f_hid_msg(struct u2f_hid_msg * msg )
+{
+	appdata.state = APP_HID_MSG;
+	appdata.hid_msg = msg;
+}
+
 
 void dump_eeprom()
 {
@@ -103,6 +109,13 @@ int16_t main(void) {
 		switch(appdata.state)
 		{
 			case APP_NOTHING:
+				break;
+			case APP_HID_MSG:
+				u2f_hid_request(appdata.hid_msg);
+
+				if (appdata.state == APP_HID_MSG)
+					appdata.state = APP_NOTHING;
+
 				break;
 			case APP_WINK:
 				LED_B = 0;