wpan: add BLE HCI

embassy-stm32-wpan/src/evt.rs

@@ -1,6 +1,7 @@
 use core::{ptr, slice};
 
 use super::PacketHeader;
+use crate::consts::TL_EVT_HEADER_SIZE;
 
 /**
  * The payload of `Evt` for a command status event
@@ -105,6 +106,14 @@ impl EvtBox {
         Self { ptr }
     }
 
+    pub fn evt<'a>(&self) -> &'a [u8] {
+        unsafe {
+            let evt_packet = &(*self.ptr);
+
+            core::slice::from_raw_parts(evt_packet as *const _ as *const u8, core::mem::size_of::<EvtPacket>())
+        }
+    }
+
     /// Returns information about the event
     pub fn stub(&self) -> EvtStub {
         unsafe {
@@ -124,6 +133,20 @@ impl EvtBox {
             slice::from_raw_parts(p_payload, payload_len as usize)
         }
     }
+
+    /// writes an underlying [`EvtPacket`] into the provided buffer.
+    /// Returns the number of bytes that were written.
+    /// Returns an error if event kind is unknown or if provided buffer size is not enough.
+    pub fn serial<'a>(&self) -> &'a [u8] {
+        unsafe {
+            let evt_serial: *const EvtSerial = &(*self.ptr).evt_serial;
+            let evt_serial_buf: *const u8 = evt_serial.cast();
+
+            let len = (*evt_serial).evt.payload_len as usize + TL_EVT_HEADER_SIZE;
+
+            slice::from_raw_parts(evt_serial_buf, len)
+        }
+    }
 }
 
 impl Drop for EvtBox {