migrate audio device to new control xfer cb

src/class/audio/audio_device.c

@@ -989,7 +989,7 @@ static bool audiod_set_interface(uint8_t rhport, tusb_control_request_t const *
 
 // Invoked when class request DATA stage is finished.
 // return false to stall control EP (e.g Host send non-sense DATA)
-bool audiod_control_complete(uint8_t rhport, tusb_control_request_t const * p_request)
+static bool audiod_control_complete(uint8_t rhport, tusb_control_request_t const * p_request)
 {
   // Handle audio class specific set requests
   if(p_request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS && p_request->bmRequestType_bit.direction == TUSB_DIR_OUT)
@@ -1065,7 +1065,7 @@ bool audiod_control_complete(uint8_t rhport, tusb_control_request_t const * p_re
 
 // Handle class control request
 // return false to stall control endpoint (e.g unsupported request)
-bool audiod_control_request(uint8_t rhport, tusb_control_request_t const * p_request)
+static bool audiod_control_request(uint8_t rhport, tusb_control_request_t const * p_request)
 {
   (void) rhport;
 
@@ -1175,6 +1175,20 @@ bool audiod_control_request(uint8_t rhport, tusb_control_request_t const * p_req
   return false;
 }
 
+bool audiod_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t const * request)
+{
+  if ( stage == CONTROL_STAGE_SETUP )
+  {
+    return audiod_control_request(rhport, request);
+  }
+  else if ( stage == CONTROL_STAGE_DATA )
+  {
+    return audiod_control_complete(rhport, request);
+  }
+
+  return true;
+}
+
 bool audiod_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)
 {
   (void) result;

src/class/audio/audio_device.h

@@ -384,11 +384,10 @@ static inline uint16_t tud_audio_int_ctr_write(uint8_t const* buffer, uint16_t b
 //--------------------------------------------------------------------+
 // Internal Class Driver API
 //--------------------------------------------------------------------+
-void audiod_init             (void);
-void audiod_reset            (uint8_t rhport);
-uint16_t audiod_open         (uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len);
-bool audiod_control_request  (uint8_t rhport, tusb_control_request_t const * request);
-bool audiod_control_complete (uint8_t rhport, tusb_control_request_t const * request);
+void audiod_init            (void);
+void audiod_reset           (uint8_t rhport);
+uint16_t audiod_open        (uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len);
+bool audiod_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t const * request);
 bool audiod_xfer_cb          (uint8_t rhport, uint8_t edpt_addr, xfer_result_t result, uint32_t xferred_bytes);
 
 #ifdef __cplusplus

src/device/usbd.c

@@ -133,8 +133,7 @@ static usbd_class_driver_t const _usbd_driver[] =
     .init             = audiod_init,
     .reset            = audiod_reset,
     .open             = audiod_open,
-    .control_xfer_cb  = audiod_control_request,
-    .control_complete = audiod_control_complete,
+    .control_xfer_cb  = audiod_control_xfer_cb,
     .xfer_cb          = audiod_xfer_cb,
     .sof              = NULL
   },