Implement asynchronous control transfer queuing for USB host stack

- Added a pending FIFO queue for asynchronous control transfers when the active slot is busy.
- Introduced `control_xfer_dispatch_pending` to handle queued transfers on slot availability.
- Improved synchronization for blocking and non-blocking transfer modes, preventing deadlocks in RTOS.
- Refactored and renamed related functions for clarity and consistency.
- Enhanced error handling and callback invocation for failed or stale transfers.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/common/tusb_types.h b/src/common/tusb_types.h
index 959fc129a..cb06b89bb 100644
--- a/src/common/tusb_types.h
+++ b/src/common/tusb_types.h
@@ -282,6 +282,7 @@ typedef enum {
   XFER_RESULT_FAILED,
   XFER_RESULT_STALLED,
   XFER_RESULT_TIMEOUT,
+  XFER_RESULT_ABORTED,
   XFER_RESULT_INVALID
 } xfer_result_t;